POL00401634 - Description of Fujitsu’s System of IT Infrastructure Services supporting Post Office Limited’s POLSAP, HNG-X and Credence applications

Evidence on official site

POL00401634
POL00401634

FUJITSU ED

Description of Fujitsu’s System
of IT Infrastructure Services
supporting Post Office Limited’s
POLSAP, HNG-X and Credence
applications

Throughout the Period 1 April 2017 to 31 December 2017

With the independent service auditor's assurance report including tests performed and
results thereof

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Table of Contents

1. MANAGEMENT STATEMENT...
2. REPORT OF INDEPENDENT SERVICE AUDITO!
3. DESCRIPTION OF FUJITSU’S SYSTEM OF IT INFRASTRUCTURE SERVICES SUPPORTING
POST OFFICE LIMITED’S POLSAP, HNG-X AND CREDENCE APPLICATIONS THROUGHOUT
THE PERIOD 1 APRIL 2017 TO 31 DECEMBER 2017
3.1. Overview of Fujitsu
3.1.1. History of Fujitsu
3.1.2 Major Markets and Human Capital...
3.1.3 Organisational Structure, including Business. Units
3.1.4 Geographical Spread ..
4, OVERALL CONTROL COMPONENTS
4.1 Control Environment...
4.2 Integrity and Ethical Values.
4.3 Business Lines and Function:
4.4 Control Activities ....
4.4.1. Governance and Oversight of Control Acti
44.2 Human Resources ....
4.5 Information and Communicatio
4.6 Monitoring...
4.7 Risk Assessment
4.7.1 _ Risk Policy and Implementation .
4.7.2 Fujitsu's Risk Process .......
4.8 Description of Services provided..
4.8.1 Physical and Environmental Controls ...
48.2 Backu
4.8.3 Job Schedul
4.8.4 Availability and Capacity Management
4.8.5 Incident Management
4.8.6 Major Incident Process .
48.7 Security Incident Process .
4.8.8 Network Incident Managemen
4.8.9 Networks......
4.8.10 Change Management
4.8.11 Security........
4.8.12 Access to databases, data files and programs......
4.8.13 External threats and access violation management . 52
4.8.14 Remote Access.......
5. THIRD PARTY CONSIDERATIONS .
6. COMPLEMENTARY USER ENTITY CONTROLS.....
7. DESCRIPTION OF CONTROL OBJECTIVES, CONTROLS, TESTS AND RESULTS OF TESTS..
7.1 Testing Performed and Results of Tests of Entity-Level Control ...
7.2. Control Objectives, Control Activities, Testing Procedures and Results of Testing
7.2.1 Control Objective 1.
7.2.2 Control Objective 2.
7.2.3. Control Objective 3.
7.2.4 Control Objective 4.
7.2.5 Control Objective 5.
7.2.6 Control Objective 6.
7.2.7 Control Objective 7.
7.2.8 Control Objective 8.
7.2.9 Control Objective 9.
7.2.10 Control Objective 10..
7.2.11 Control Objective 11
7.2.12 Control Objective 1
7.2.13 Control Objective 13..

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1. Management Statement
9 March 2018

We have preparedthe accompanyingDescription of Fujitsu’s system of IT infrastructure services supporting
Post Office Limited’s POLSAP, HNG-X and Credence applications Throughout the Period 1 April 2017 To
31 December 2017 (“Description” for Post OfficeLimited(POL)duringthe period 1 January2017 to 31 August
2017, and the independentauditors of POL who have a sufficientunderstandingto considerthe Description,
along with other information, including information about controls implemented by POL themselves, when
assessingthe risks of materialmisstatementsof POL'sfinancialstatements.

We confirm, to the best of our knowledge and belief, that:

a. The Description fairly presents the IT Infrastructure services supporting POL’s POLSAP, HNG-X
and Credence applications (“System”) made available to POL during the period 1 April 2017 to 31
December 2017 for providing Infrastructure services to the POLSAP, HNG-X and Credence
applications.

b. The criteria we used in making this statement were that the Description:

(1) presents how the System made available to POL was designed and implemented, including:
e the types of services provided;

e the procedures, within both automated and manual systems, by which those services are
provided;

e the related supporting information this includes the correction of incorrect information and
how information is transferred to the reports prepared for POL;

e how the System captures and addresses significant events and conditions;
« the process used to prepare reports or other information provided to POL;
e specified control objectives and controls designed to achieve those objectives;

¢ controls that, in designing the System, Fujitsu contemplated would be implemented by POL
in order to achieve the specified control objectives (Complementary User Entity Controls);
and

e other aspects of the Company’scontrol environment, risk assessment process, information
and communication systems (including the related business processes), control activities,
and monitoring controls that are relevant to the services provided.

(2) does not omit or distort information relevant to the scope of the System.

c. the Description includes relevant details of changes to the System during the period from 1 April
2017 to 31 December 2017.

d. the controls related to the control objectives stated in the Description were suitably designed and
operated effectively throughout the period 1 April 2017 to 31 December 2017 to achieve those
objectives if POL implemented the Complementary User Entity Controls. The criteria we used in
making this statement were that:

(1) the risks that threaten the achievementof the control objectives stated in the Description have
been identified;

(2) the controls identified in the Description would, if operating as described, provide reasonable
assurance that those risks would not prevent those control objectives stated in the Description
from being achieved and;

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(3) the controls were consistently applied as designed, including whether manual controls were
applied by individuals who have the appropriate competence and authority.

Garry Stewart
Service Delivery Director Private Sector BAS

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2. Report of Independent Service Auditor

Fujitsu Services Limited
Lovelace Road
Bracknell

RG12 8SN

Scope

We have examined Fujitsu Services Limited (“Fujitsu”)’s accompanying Description of Fujitsu’s system of
IT infrastructure services supporting Post Office Limited’s POLSAP, HNG-X and Credence applications
Throughout the Period 1 April 2017 To 31 December 2017 (Description) and the suitability of the design
and operating effectiveness of controls to achieve the related control objectives stated in the Description.
The Description indicates that certain control objectives specified in the Description can be achieved only
if complementary user entity controls contemplated in the design of Post Office Limited (POL)’s controls
are suitably designed and operating effectively, along with related controls at Fujitsu. We have not
evaluated the suitability of the design or operating effectiveness of such complementary user entity
controls.

Fujitsu uses a range of network providers to provide Wide Area Network (WAN) services to POL. The
Description includes only the controls and related control objectives of Fujitsu and excludes the control
objectives, and related controls of these network providers. Our examination did not extend to the controls
of network providers.

Fujitsu’s responsi ties

Fujitsu has provided the accompanying statement titled, Management Statement (Statement) on page 1
about the fairness of the presentation of the Description and suitability of the design and operating
effectiveness of the controls to achieve the related control objectives stated in the Description. Fujitsu is
responsible for preparing the Description and the Statement, including the completeness, accuracy and
method of presentation of the Description and the Statement and stating the control objectives in the
Description.

Fujitsu is also responsible for providing the services covered by the Description, specifying the control
objectives and stating them in the Description, identifying the risks that threaten the achievement of the
control objectives, selecting the criteria stated in the Statement and designing, implementing and
documenting controls to achieve the related control objectives stated in the Description.

Our Independence and Quality Control

We have complied with the independence and other ethical requirements of the Code of Ethics for
Professional Accountants issued by the International Ethics Standards Board for Accountants, which is
founded on fundamental principles of integrity, objectivity, professional competence and due care,
confidentiality and professional behaviour.

The firm applies International Standard on Quality Control 1 and accordingly maintains a comprehensive
system of quality control including documented policies and procedures regarding compliance with ethical
requirements, professional standards and applicable legal and regulatory requirements.

Service Auditor’s responsibilities

Our responsibility is to express an opinion on the fairness of the presentation of the Description and on the
suitability of the design and operating effectiveness of the controls described therein to achieve the related
control objectives stated in the Description, based on our examination. We conducted our examination in
accordance with International Standard on Assurance Engagements 3402 Assurance Reports on Controls
at a Service Organization, issued by the International Auditing and Assurance Standards Board. Those
standards require that we plan and perform our examination to obtain reasonable assurance about whether,
in all material respects, the Description is fairly presented and the controls described therein were suitably

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designed and operating effectively to achieve the related control objectives stated in the Description
throughout the Period 1 April 2017 to 31 December 2017.

An examination of a description of a service organisation’s system, and the suitability of the design and
operating effectiveness of the service organisation's controls described therein to achieve the related
control objectives stated in the Description involves performing procedures to obtain evidence about the
fairness of the presentation of the Description and the suitability of the design and operating effectiveness
of those controls to achieve the related control objectives stated in the Description. Our procedures included
assessing the risks that the Description is not fairly presented and that the controls were not suitably
designed or operating effectively to achieve the related control objectives. Our procedures also included
testing the operating effectiveness of those controls that we consider necessary to provide reasonable
assurance that the related control objectives were achieved. An examination of this type also includes
evaluating the overall presentation of the Description, the suitability of the control objectives stated therein,
and the suitability of the criteria specified by the service organisation and described in the Statement. We
believe that the evidence we obtained is sufficient and appropriate to provide a reasonable basis for our
opinion.

The relative effectiveness and significance of specific controls at Fujitsu and their effect on assessments
of control risk at POL are dependent upon their interaction with controls and other factors present at POL.
We have performed no procedures to evaluate the effectiveness of controls at POL.

Inherent limitations

Fujitsu's Description is prepared to meet the needs of POL and its independent auditors and may not
include every aspect of the system that POL may consider important in its own particular environment.
Because of their nature, controls at a service organisation may not prevent or detect and correct all errors
or omissions in processing or reporting transactions. Also, the projection to the future of any evaluation of
the fairness of the presentation of the Description or conclusions about the suitability of the design or
operating effectiveness of the controls to achieve the related control objectives, is subject to the risk that
controls at a service organisation may become inadequate or fail.

Opinion
In our opinion, in all material aspects, based on the criteria described in Fujitsu's Statement:

a. the Description fairly presents the system that was designed and implemented throughout the
Period 1 April 2017 to 31 December 2017.

b. the controls related to the control objectives stated in the Description were suitably designed to
provide reasonable assurance that the control objectives would be achieved if the controls
operated effectively throughout the period 1 April 2017 to 31 December 2017 and if POL applied
the complementary user entity controls contemplated in the design of Fujitsu’s controls throughout
the period 1 April 2017 to 31 December 2017.

c. the controls tested, which, together with the complementary user entity controls referred to in the
scope paragraph of this report if operating effectively, were those necessary to provide reasonable
assurance that the control objectives stated in the Description were achieved, operated effectively
throughout the period 1 April 2017 to 31 December 2017.

Description of tests of controls

The specific controls tested and the nature, timing, and results of those tests are listed in the accompanying
Description of Control Objectives, Controls, Testing and Results of Tests (Description of Tests and
Results).

The information in Other Information Provided by Fujitsu is presented by Fujitsu to provide additional
information, and is not part of the Description that may be relevant to Post Office’s internal control. Such
information has not been subjected to the procedures applied in the examination of the description of
controls applicable to the processing of transactions for Post Office, and accordingly, we express no
opinion on it.

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Restricted use

This report, including the description of tests of controls and results thereof in the Description of Control
Objectives, Controls, Testing and Results of Tests, is intended solely for the information and use of Fujitsu,
POL as the user of the system during some or all of the period 1 April 2017 to 31 December 2017 and the
independent auditors of POL. This report is not intended to be and should not be used by anyone other
than these specified parties.

Ernst * Hesia, Lve

9 March 2018
London
United Kingdom

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3.Description of Fujitsu’s system of IT infrastructure
services supporting Post Office Limited’s POLSAP,
HNG-X and Credence applications Throughout the
Period 1 April 2017 to 31 December 2017

3.1. Overview of Fujitsu

3.1.1 History of Fujitsu

Fujitsu has evolved, through a process of acquisition and organic development, to create a broad-based
technology and services organisation, with a strong record of innovation and lean service delivery. Fujitsu
has a long and successful history with Post Office which has links going back more than 40 years.

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Figure 1. A long line of landmark achievements and product milestones for Fujitsu

3.1.2 Major Markets and Human Capital

Fujitsu UK and Ireland is a leading IT systems, services and products company employing approximately
14,000 people with an annual revenue of £1.8 billion. Its business is in enabling its customers to realise
their objectives by exploiting information technology through its integrated product and service portfolio.
This includes consulting, applications, systems integration, managed services and product for customers
in the private and public sectors including retail, financial services, telecoms, government, defence and
consumer sectors.

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Figure 2. Delivery locations spread throughout the UK&l

3.1.3. Organisational Structure, including Business Units

Figure 3. Fujitsu UK&l Organisation

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3.1.4 Geographical Spread

=

Americas Asia

Argentina, Brazil, Japan, China, Hong
Chile, Colombia, Kong, India, Indonesia,
Canada, Mexico, Korea, Malaysia,
Puerto Rico, United Philippines, Singapore,
States of America, _ Srilanka, Taiwan,
Venezuela Thailand, Vietnam
Anguilla, Aruba,

Bahamas,

Barbados, Cayman

Islands, Dominica,

French Guiana,

Guadalupe,

Jamaica,

Martinique,

Montserrat,

Netherlands

Antilles, Saint

Vincent and

Grenadines,

Trinidad-and-

Tobago, Virgin

Islands British,

Virgin Islands U.S.

Oceania
Australia, New
Zealand

EMEA
Armenia, Azerbaijan, Austria, Belarus, Belgium,
Bulgaria, Croatia, Czech Republic, Denmark,
Estonia, Finland, France, Georgia, Germany,
Greece, Hungary, Ireland, Italy, Kazakhstan,
Kyrgyzstan, Latvia, Lithuania, Luxembourg,
Macedonia, Moldova, The Netherlands,
Norway, Poland, Portugal, Romania, Russia,
Serbia, Slovenia, Slovakia, Spain, Sweden,
Switzerland, Tajikistan, Turkmenistan,

Ukraine, United Kingdom, Uzbekistan,
Afghanistan, Bahrain, Gaza, Iraq, Israel, Jordan,
Kuwait, Lebanon, Malta, Oman, Pakistan,
Palestine, Qatar, Saudi Arabia, Turkey, United
Arab Emirates, West Bank, Yemen, Algeria,
Angola, Benin, Botswana, Burkina Faso,
Burundi, Cameroon, Cape Verde, Central
African Republic, Chad, Congo, Democratic
Republic of Congo, Djibouti, Egypt, Equatorial
Guinea, Eritrea, Ethiopia, Gabon, Gambia,
Ghana, Guinea, Guinea Bissau, Ivory Coast,
Kenya, Lesotho, Liberia, Libya, Madagascar,
Malawi, Mali, Mauritania, Mauritius, Morocco,
Mozambique, Namibia, Niger, Nigeria,
Reunion, Rwanda, Sao Tome, Senegal,
Seychelles, Sierra Leone, Somalia, South Africa,
Swaziland, Tanzania, Togo, Tunisia, Uganda,
Western Sahara, Zambia and Zimbabwe

Figure 4. Fujitsu Global Locations

4. Overall Control Components

This section provides information about the five interrelated components of internal control at Fujitsu:

e Control Environment - sets the tone of an organisation, influencing the control consciousness.
of its people. It is the foundation for all other components of internal control, providing discipline

and structure.

e Control Activities — are the policies and procedures that help make sure that management's

directives are carried out.

e Information and Communication — are systems, both automated and manual, that support the
identification, capture and exchange of information in a form and time frame that enable people to

carry out their responsibilities.

« Monitoring-— is a process that assesses the quality of internal control performance over time.

e Risk Assessment - is the entity's identification and analysis of relevant risks to the achievement
of its objectives, forming a basis for determining how the risks can be managed.

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Fujitsu internal control components include controls that may have a pervasive effect on the organisation,
an effect on specific processes, account balances, disclosures, classes of transactions or applications or
both. Some of the components of internal control include controls that have more of an effect at the entity
level, while other components include controls that are primarily related to specific processes or
applications. When assessing internal control, we consider the interrelationships among the five
components.

4.1 Control Environment

Management has established and maintains an internal control structure that monitors compliance with
established standards, policies, and procedures. The remainder of this subsection discusses the tone at
the top as set by Leadership and Management, the integrity, ethical values and competence of Fujitsu
employees, the standards, policies and procedures, the risk management process and monitoring and the
roles of significant control groups. The internal control structure is established and refreshed based on
Fujitsu's assessment of risk facing the organisation.

4.2 Integrity and Ethical Values

Fujitsu recognises its responsibility to foster a strong ethical environment to determine that its business
affairs are conducted with integrity and in accordance with high standards of personal and corporate
conduct. This responsibility is characterised and reflected in the Fujitsu Way Code of Conduct, which is
understood by all employees of the organisation. All employees are required to maintain ongoing
compliance and compliance training. Compliance checks are undertaken to help ensure that employees
understand and comply with the Fujitsu Way Code of Conduct.

4.3. Business Lines and Functions

The Business Lines and Functions that provide services or support the delivery of service to POL are as
follows:

e Business and Applications Services (BAS).
« Compliance.
e Operations.

* Enterprise and Cyber Security (ECS).

«Operations:

Information & Technology Group.
o Procurement.

o Properties and Shared Services.
o Responsible Business.

°

e Managed Infrastructure Services (MIS).

« Product Business.

e Legal and Commercial.

« Finance.

« Human Resources.

e Sales and Marketing.

e Strategy, Offerings, Governance and Assurance (SOGA).

The purpose of these Business Lines and Functions is to enable, organise and facilitate the delivery
requirements placed on Fujitsu by the Post Office contract.

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Each of the Business Lines or Functions is also controlled through its own service descriptions,
organisational controls, vision, mission and value statements, governance and control frameworks,
monitoring and review controls and performance measures.

The Business Lines and Functions establish their own frameworks for the continuous formal support of the
Fujitsu team managing the Post Office contract by their management and enforce this through their own
policies, procedures and standards and registers, including, where applicable, internal and external audits.
The controls in place at each of these areas have overall objectives, terms of reference, job descriptions
and Senior Management roles. Each of these functions has its own levels of management, staff, directors
and stakeholders, all of which impact the service that Fujitsu is able to provide to Post Office. Each of these
Business Lines and Functions is also responsible for helping to ensure that their staff are appropriately
trained and follow Fujitsu Corporate processes to achieve this.

4.4 Control Activities

4.4.1. Governance and Oversight of Control Activities

Fujitsu's has established the Corporate Governance Committee (CGC) and Audit Committee responsible
to the Fujitsu UK and Ireland Board to oversee the company’s approach to governance and control.

The directors are committed to maintaining a strong control environment throughout the organisation and
recognise that the control environment provides the foundation for all other components of internal control
providing discipline and structure.

The Board of Directors is responsible for monitoring performance of the Company on behalf of its
shareholders and helping to ensure that Fujitsu satisfies regulatory and statutory requirements related to
its operations. Authority for action and expenditure within Fujitsu Service flows from the Board and the
Board has established that the necessary control systems are in place to help ensure that business is
undertaken in a responsible manner. Fujitsu's policies, operations and strategy are controlled by the Board.

The Board meets as required and its two key sub-committees the CGC and the Audit Committee meet
quarterly.

In addition, Fujitsu has a systematic approach to policy and process with a set of Master Policies approved
by the CGC and sub-policies and processes determined by the relevant regional functions underneath. The
framework, known as the EMEIA Business Management System (EBMS) is managed by Fujitsu's Business
Assurance teams and comprises a set of mandatory Master Policies and Business Processes. The key
Master Policies cover Ethics, Security, Human Resources, Corporate Responsibility, Finance, Legal,
Service Delivery, Quality, Project Management, Risk Management and Business Continuity under each of
which is a set of specific business processes owned by Senior Management.

Within the Fujitsu teams supporting POL, each Business Line and Function follows the EBMS. Where
exceptions to the EBMS are necessary, local standards, procedures and work instructions are documented
with a ‘Let’ from the Corporate Process Owner where the Corporate Process Owner authorises that local
departure from the EBMS.

4.4.2 Human Resources

4.4.2.1 Policies and Practices

Human resource policies and practices relate to hiring, orienting, training, evaluating, counselling,
promoting and compensating personnel. The competence and integrity of Fujitsu’s personnel are essential
elements of its control environment.

4.4.2.2 Performance Management

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Fujitsu has industry acknowledged good practice embedded in its approach to performance management
as recognised by our Investors in People Gold Accreditation and Champion status.

We call our approach Performance First and the key elements of this inclusive approach include:

e Managers across the business disseminate and share Fujitsu business goals with all employees by
converting them into meaningful team and individual objectives.

e Monthly one-to-one discussions are held with direct reports, using coaching skills to ensure individuals
have the support they need to take ownership of, and deliver against their objectives.

« Every individual creates their own personal development plan, which forms part of the monthly review,
captures development needs and includes a suitable learning action for each need.

e Every employee has an interim quarterly review and an annual appraisal held to formally record
achievement against objectives, noting outcomes and future development needs.

e Following the appraisal, on an annual basis, a performance rating is allocated to every employee
based upon their achievements against objectives. These ratings are linked to salary review and
bonus eligibility.

Within Fujitsu, employee performance management is recognised as key to delivering excellent customer
service.

To support managers and employees through the process Fujitsu has a comprehensive “one stop shop”
intranet portal that provides a wealth of collateral, guidance and training aids for each stage. As well as
traditional training we have videos of employees and managers talking about the process and on-line
demonstrations of the Performance First IT recording system. Our regional CEO is personally involved in
filming communications and training material for all employees.

4.5 Information and Communication
Fujitsu UK and Ireland Business Lines and Functions have EMEIA Connect portals to enable sharing of
knowledge across the company and throughout their own business areas.

These portals provide information about each of the Business Lines and Functions and what products and
services they offer to the company.

Fujitsu has a robust and reliable communication framework that utilises push and pull strategies to help
ensure that employees have the information they need to perform their roles effectively, efficiently and
ethically.
Some of the mechanisms used to communicate directly with Fujitsu employees include:

« Road Shows.

e — Staff Briefings.

e Team Meetings.

e Leadership and Management Cascades.
Fujitsu also seeks the views of employees via representative groups in different parts of the Company.
Fujitsu management consults regularly with these bodies, providing updates and seeking views on

important issues. In addition Fujitsu has agreements with trades unions that include regular meetings with
local and senior management to discuss issues affecting employees in the unions’ area of interest.

Fujitsu Voice is the employee forum that allows for importantissues affecting people in the UK to be shared
with the senior leadership team. Topics discussed range from company strategy to restructuring, changes
in HR policies to influencing key decisions executives need to take. Fujitsu Voice serves to represent

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employees, and facilitates the communication of employee needs when considering key issues, and in
many cases, influences those issues. The leadership team values the input and perspective from this

group.

4.6 Monitoring

Fujitsuutilisesa varietyof systems, processesand tools to help ensure that operationsare efficient,effective
andethical,including:

« Performance Dashboards.
e Standard Reporting Packs.
« Audits and Health Checks.
« Reviews and Lessons Learned.

* Customer Satisfaction Scores.

Data and information from these sources are used to identify weaknesses, inefficiencies or potential
performance issues. Performance issues are remediated and opportunities for improvementare identified,
evaluated, prioritised and managed through to appropriate implementation.

Audits by Fujitsu Business Assurance Teams are used to support the design, implementation and post
implementation review of the controls in place and to help ensure that the relevant governance, strategy
and needs and requirements of both POL and Fujitsu are met.

4.7 Risk Assessment

4.7.1 Risk Policy and Implementation

Fujitsu manages risk and uncertainty in its business in order to improve performance and achieve
objectives. All operating companies have a risk management framework. Each company has a designated
Chief Risk Management Officer (‘CRMO”) whose responsibilities include bi-annual risk reporting and
prompt escalation of significant risks in addition to managing and monitoring the risk process on behalf of
the board. Fujitsu’s risk management framework centres on the risk management policy which is a key
management policy overseen by the Fujitsu Services Limited board.

Responsibility for implementation of the Manage Risk Policy is delegated throughout the business cycle.
Management oversight at critical points in the business cycle is provided through the Review Framework,
a structured set of formal management reviews. The management of risk is embedded throughout these
structures such that any potential problems can be planned for and managed appropriately. From April
2016, a Risk and Governance Management Board (“RGMB’) has directed the implementation of risk policy
throughout Fujitsu Services, replacing the UK and Ireland Risk Management and Compliance Committee
(“RMCC”) and equivalent structures

4.7.2 Fujitsu’s Risk Process

The Fujitsu Services Risk Process is used to support the evaluation, reporting and management of risks in
the business and is consistent with industry best practice, particularly the International and British
Standards and code of practice for risk management (ISO31000 and BS31100). Fujitsu Services uses the
international standard (ISO31000) for risk management as the template to improve its risk framework and
process.

Fujitsu's Enterprise Risk Management System (ERM) provides clear and effective monthly risk reporting to
the regional leadership teams and forms the basis of the GBG. This helps to ensure a high level of risk
managementis maintained throughout the organisation.

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4.8 Description of Services provided

In relation to the scope of Fujitsu services and assurance provided by this ISAE 3402 report for the
examination throughout period 1 April 2017 to 31 December 2017, please note the following changes to
Fujitsu IT infrastructure services supporting POL below.

In addition, under POL’s evolving service delivery model where reference is made below to ‘POL
approvals,’ this may be provided by POL or their nominated agents.

Credence Application

Fujitsu is responsible for hosting the infrastructure and hardware supporting the Credence application.
Fujitsu has no responsibility for application and database support and only provide limited infrastructure
support such as monitoring the server health and utilisation. Accenture as the designated IT outsourcing
third party provider, has been responsible for managing the Credence user interface functionality, which
supports POL’s central financial reconciliation process.

POLSAP Application

Fujitsu is responsible for hosting the infrastructure and hardware supporting the POLSAP application.
Fujitsu has no responsibility for application and database support and only provide limited infrastructure
support such as monitoring the server health and utilisation. User access management, change
management and IT operations for the POLSAP application, are centrally managed by Accenture.

HNG-X Application

Fujitsu have continued to provide the same services throughout the period of examination as they have in
the previous audit periods.

Please note that the Credence infrastructure is supported by the same people, processes and technology
as are used to support HNG-X. On this basis, where the description of system below refers to HNG-X, this
also describes how Fujitsu supports Credence for POL. The only exceptions to this are the areas in the
table below, where Fujitsu has not been contracted to operate these controls by POL, designated by the
not applicable (N/A) references in the ISAE 3402 controls matrix outlined below.

Therefore, this report shall provide assurance as up to the following date for the stipulated 3402 controls
covered:

Controls ¥ POLSAP HNG-X Credence

Control Objective 1: Controls provide reasonable I 31 Dec 2017 I 31 Dec 2017 I 31 Dec 2017
assurance that access to the data centre and facilities
with computer equipment, storage media and program
documentation is restricted to properly authorised
individuals

Control Objective 2: Controls provide reasonable I 31 Dec 2017 I 31 Dec 2017 I 31 Dec 2017
assurance that computer equipment and facilities are
protected from damage by fire, flood and other
environmental hazards and maintenance agreements
are in place.

Control Objective 3: Controls provide reasonable I 31 Dec 2017 I 31 Dec 2017 I 31 Dec 2017
assurance that programs, files and datasets that have
been identified as requiring periodic backup are
backed up and retained.

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Controls

POLSAP

HNG-X

Credence

Control Objective 4: Controls provide reasonable
assurance that processing is appropriately authorised
and scheduled and that deviations from scheduled
processing are identified and resolved.

N/A

31 Dec 2017

N/A

Control Objective 5: Controls provide reasonable
assurance that system availability, performance and
capacity are routinely monitored to help ensure that
potential issues are captured and investigated.

N/A

31 Dec 2017

31 Dec 2017

Control Objective 6: Controls provide reasonable
assurance that significant operations incidents are
adequately reported, tracked, monitored through
resolution and resolved timely.

31 Dec 2017

31 Dec 2017

31 Dec 2017

Control Objective 7: Controls provide reasonable
assurance that networks are managed to contractual
and site requirements, monitored for availability and
response times and issues are identified, tracked and
resolved.

31 Dec 2017

31 Dec 2017

31 Dec 2017

Control Objective 8: Controls provide reasonable
assurance that modifications to system software and
networks are authorised, tested, approved, properly
implemented and documented.

N/A

31 Dec 2017

31 Dec 2017

Control Objective 9: Controls provide reasonable
assurance that new or modified application software
development efforts are authorised, tested, approved,
properly implemented and documented.

N/A

31 Dec 2017

N/A

Control Objective 10: Controls provide reasonable
assurance that access to system resources, including
computing platforms and operating systems, is
restricted to properly authorised individuals.

31 Dec 2017

31 Dec 2017

31 Dec 2017

Control Objective 11: Controls provide reasonable
assurance that access to databases, data files and
programs is restricted to properly authorised
individuals.

31 Dec 2017

31 Dec 2017

31 Dec 2017

Control Objective 12: Controls provide reasonable
assurance that networks and system resources are
protected from external threats and access violations
are detected, reported and investigated.

31 Dec 2017

31 Dec 2017

31 Dec 2017

Control Objective 13: Controls provide reasonable
assurance that remote access is appropriately
restricted to authorised personnel.

31 Dec 2017

31 Dec 2017

31 Dec 2017

4.8.1 Physical and Environmental Controls

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1. Control Objective 1: Controls provide reasonable assurance that access to the data centre and
facilities with computer equipment, storage media and program documentation is restricted to
properly authorised individuals.

# Control

14 Data centre access: Data centre specific physical access security policies and procedures to
control access to the data centre and other sensitive areas, including computer equipment and
storage media, are implemented and are made available to Fujitsu staff via the intranet.

1.2 Access within the data centre: Access beyond the security desk is protected by a key-card
system to restrict individual access to specific data processing areas based on the access level
granted. New users requiring access to the data centre must complete an access form, which
must be signed as approved by the line manager responsible for the zones requested.

1.3 CCTV: The data centre access is monitored through the use of CCTV video cameras placed
at strategic locations around the data centre. The CCTV video footage is monitored by security
guards.

1.4 Security guards: Security guards are present at the data centre 24 hours per day and seven

days per week. The data centre can only be accessed through the security desk manned by a
security guard at all times.

1.5 Data centre visitors: Visitors are required to sign in at the reception areas and temporary
badges are issued. Visitors must be pre notified to data centre security by a Fujitsu employee.

1.6 Failed access monitoring: Attempts to enter restricted areas without using authentication
devices are denied and a security alert is triggered and logged. Data centre management
proactively follows up on security alerts that are triggered.

1.7 Review of user access within the data centre: Periodic reviews are performed by the data
centre facilities manager for users with access to the data centre on a quarterly basis.

1.8 Deletion of user access: Delivery team managers notify the local site facilities team of
terminations or transfers of their direct reports. Upon notification user access is revoked from
the security access control system.

2. Control Objective 2: Controls provide reasonable assurance that computer equipment and
facilities are protected from damage by fire, flood and other environmental hazards and
maintenance agreements are in place.

Control

24 Fire Suppression: Fire detection and suppression devices, such as hand-held fire
extinguishers, are strategically placed throughout the entire data centre.

2.2 Maintenance Schedule: Periodic inspection and maintenance is performed on protection
devices, sensors and alarm systems.

2.3 Environmental monitoring: Smoke detectors and water, humidity and temperature monitoring
devices are installed throughout the data centre to detect abnormal environmental conditions.

2.4 UPS Supply: UPS systems are installed to protect the facilities and computer equipment from
electrical power fluctuations and outages.

The Trident House campus in the IRE11 data centre comprises of a two storey office block (Phase I) with
an adjoining computer room and data/output handling area. There is also a separate single storey building
(Phase I!) containing offices and another computer room. There is one main entrance to the Trident House

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Phase I building and an entrance for the loading bay, and one main entrance to the Trident House Phase
II building.

The IRE11 data centre component of the Trident House campus is composed of raised floor computer
rooms, office space and facility support (Un-interruptible Power Supply [UPS] systems, backup generators
and power distribution equipment). The IRE11 data centre is staffed with its own security guards, who are
on duty 24 hours a day, seven days a week (1.4). Physical access to the data centre can only be obtained
through the security officer's desk at the main entrance to the campus. The Trident House campus is also
equipped with Closed Circuit Television (CCTV) cameras, monitored by the campus security guards (for
all areas) and the Data Centre Operations team for all secure Data Centre computer rooms. These cameras
are located along the IRE11 campus perimeter, entry/exit locations, main entrances and additional strategic
locations within the secure computer rooms to help ensure complete coverage of the data centre (1.3).

The IRE11 data centre has developed and implemented data centre specific physical access security
policies and procedures to control access to the data centre and other sensitive areas, including computer
equipment and storage media (1.1).

The POL computing hardware and storage media is located in secure areas of the data centre facility with
access restricted to appropriate personnel through the use of an electronic card access system (SAFE);
the computer room employs keypad/PIN code technology as an additional level of access control (1.2). All
personnel are required to individually swipe in and where applicable, swipe out of an area using badge
card readers. "Piggy backing" off someone else swiping in, is prohibited. Attempts to enter restricted areas
without using authentication devices are denied and a security alert is triggered and logged. Data centre
management proactively follow up on security alerts that are triggered (1.6 and 1.7).

Access to the data centre is secured based on access provided to users based on their role via the
electronic card access systems (1.2).

This access system controls entry for all entrances/rooms as per the access provided to personnel, while
maintaining the security of the building.

When an employee leaves the data centre, the access card is removed from the system database and it
would no longer provide access. Therefore, if cards are not retrieved, the security of a facility can be
maintained. Unique cards are issued for each employee, for individual control, accountability and tracking
of activity. Flexible control is accomplished by allowing each person the access to different areas, and
only at certain times.

An audit trail is provided for management tracking and reporting of who entered and/or left a particular area
at a particular time. Tracking of all access attempts is provided to allow management to determine if
employees are attempting to enter areas they are not permitted access to, or whether employees are
attempting to get into areas at times when they are not allowed access to those areas (1.6).

4.8.1.1 Visitor Access

Visitors (and initially new joiners who have not yet been issued their photo access card) are issued with a
visitor's access card. Visits to the IRE11 campus, and the issue of visitor access cards, must be recorded
in the local site visitors' log. The details must include: Date and time of entry, Name, Company (where
applicable), Person visiting, Unique number of the visitor access card and Time of exit.

Visitors should normally be escorted around Fujitsu sites, but they can be issued with an ‘unescorted’
access card, depending on the provisions in the Local Site Building Security Procedures.

The ‘escorted’ and ‘unescorted’ badges (and lanyards) clearly distinguish visually, which is which.

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All access to the computer rooms is strictly controlled. To access the computer rooms, an individual must
first complete a request in the data centre on-line access request system to obtain approval from the data
centre facilities manager; if a valid reason has not been provided for multiple accesses, the access will
only allow the individual to access the data centre once. No access is granted unless a valid reason has
been provided and the on-line access ticket has been authorised (1.5).

All visitor access cards (common areas) are handed over to the issuer (normally reception or site security)
at the end of each day. All visitor access cards (computer rooms) must be handed over to the issuer (IRE11
Operations team) at the end of each day.

Persons issuing visitor access cards (reception/site security/DC Operations team) check the records to
help ensure that all visitor access cards are recovered at the end of each day. If cards are outstanding at
the end of the day, they will be electronically disabled and enquiries will be made to the person who has
been issued the access card, or the person they were visiting, for the return of the access card.

4.8.1.2 Monitoring of Individuals with Access to the Data Centre

The IRE11 Data Centre management and Fujitsu Group Security personnel periodically review reports of
user access levels to restricted areas of the data centre to determine whether user access rights are
appropriate (1.7). The managers of the various delivery teams are responsible for notifying the local site
facilities team of terminations or transfers of their direct reports. Upon notification of employment changes,
access through the security access control system is revoked and the card key and other physical access
devices are collected (1.8).

4.8.1.3. Environmental systems

The IRE11 data centre is equipped with environmental systems to safeguard POL’s hardware and
information assets located within the facilities. The computer room is equipped with leak detection systems,
smoke detectors, fire suppression systems, hand held fire extinguishers and temperature monitoring
systems (2.1, 2.3). Condensing units, pumps, and chillers provide cooling for the data centre. This
equipment supports multiple computer room air conditioning units distributed throughout the raised floors.
The POL client servers and hardware equipment are mounted in locked racks or free standing cabinets on
the raised floors.

Each computer room is supplied with separate commercial power feeds, each from a single power
generation substation. Separate diesel generators support each computer room and provide backup power
in the event that commercial power is temporarily unavailable. These generators are supplied with
additional fuel tanks that provide an operating window at full load. The power distribution equipment
consists of two uninterruptible power supply (UPS) systems providing conditioned power to a UPS Static
Switch. The UPS Static Switch provides power as the primary and alternate source of power to the
associated Static Switch Power Distribution Units (PDUs). The PDUs have dual feeds designed to provide
a seamless transfer in the event of a power loss (2.4).

The IRE11 data centre is monitored by a Building Management System (BMS) located in the Site facilities
office (monitored by the 3 party, GS Hall engineers) in the Phase I buildings within the data centre location,
with repeater heads located in the Security office and the data centre Operations Bridge. The BMS
automatically alerts all three stations, if abnormal environmental conditions occur.

The GS Hall engineers, Security and Operations teams monitor the BMS system 24 hours a day, seven
days a week to provide rapid evaluation and response to facility problems (2.3). Scheduled inspection and
maintenance are performed on environmental protection devices, sensors, and alarm systems (2.2).
Maintenance checks are performed at varying intervals dependent on the devices; however, devices are
checked at least annually.

4.8.2 Backup

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3. Control Objective 3: Controls provide reasonable assurance that programs, files and datasets
that have been identified as requiring periodic backup are backed up and retained.

# Control

3.1 Backup Definition: The Backup High Level Design documents define the backup and recovery
requirements for each platform.

3.2 Backup Toolset: Backups are performed either using NetBackup or RMAN (automated tools)
respectively for each platform.

3.3 Backups are written to a secondary location: Backups performed are written to a separate
disk array and are simultaneously written to a disk array at the disaster recovery site.

3.4 Failed backups: Failed backups are logged as events in the Tivoli Works Scheduler tool for
System Management Centre (SMC) team review and resolution.

The Solution Owner is responsible for ensuring that, in the event of accidental deletion or corruption of
data, the data can be recovered. The Platform Physical Design documentwill define whether a NetBackup
client is required and the Application High Level Design will define the backup and recovery policy and
method (3.1). The Solution Owner is also responsible for defining the archive and deletion policy as well
as the data that needs to be retained for audit purposes.

At the discretion of the Solution Owner, backups may be performed using Oracle RMAN or the NetBackup
based backup tools according to patterns defined in the Backup & Recovery High Level Design (3.2).

In the case of Oracle RMAN backups, the backup data is written to disk in a separate disk array.
Simultaneously it is also written to a disk array at the disaster recovery site (3.3). Those systems which
have been identified as requiring backups via the NetBackup solution will have their backups scheduled
via the TWS scheduler. TWS provides automatic monitoring of the status of the backups, and will have
backups written to each data centre to provide resilience in the event of a requirement to perform Disaster
Recovery.

Depending on the size of the dataset to be backed up, either a direct client backup via the network may be
performed or a split mirror backup using standard features (clones and snapshots) of the storage arrays
which are presented to the backup media server. Data is written to a virtual tape library at both the primary
and the disaster recovery sites. No tapes are exported from the system unless specifically requested and
authorised.

Note that in some circumstances, the recovery may by design be effected by replaying the data from an
upstream system rather than by performing a traditional "backup recovery" as many systems need to keep
a consistent view of each other and going backwards in time is not always appropriate.

The Backup Developmentteam delivers appropriate NetBackup policies according to these definitions. The
Live System Test team reviews the delivered policies against the design requirement. If an RMAN backup
has been specified, the Live System Test application instance will perform those same RMAN backups or,
in the case of POLSAP application service, the Operational Acceptance Test (OAT) system will be used to
confirm the operation of the RMAN backup before deploying to Production.

The backup jobs are automated as defined by the Solution Owner in the Batch Scheduling High Level
Design and implemented by the Schedule Development team. If a backup does not complete or does not
backup all files it will exit with a failure status. Detection of failed backups is through job failure being
signalled to the Master Batch Scheduling system which raises events in a generic manner to the System
Management Centre (SMC). SMC uses the Known Error Log (KEL) system to identify the appropriate team
to respond to the backup failure and pass a Triole for Service (TFS) call to their call stack with a voice
prompt. Corrective action that is required beyond a simple rerun via the batch scheduler is planned and a
Managed Service Change (MSC) ticket is raised for approval. A mechanism exists to provide emergency
approval by escalating to the Duty Service Manager during out of office hours (3.4).

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The backup and recovery methods are based on well-known industry standard solutions, and the general
operation was extensively tested during non-functional testing prior to HNG-X go-live. The responsibility of
the operational teams only extends to recovering data from virtual tape or clone images and performing
database recovery, such as archive log replay. There may subsequently be application support activity
required to return the service to an operational state. Recovery is tracked through the incident number of
the call raised for the original fault report, and is only performed when a MSC has been approved by Service
Management. This same process is followed for all systems that may perform backup recoveries.

Recoveries for RMAN backups are performed by the DBA team that supports those databases. Recoveries
for NetBackup backups are performed by the Unix team. Recoveries from clones are performed by the
Unix or NT team depending upon the OS type of the target system.

Audit retrievals are happening on a fairly frequent basis driven by formal customer requests from POL.
Audit retrieval is tested as part of an upgrade or change to the audit infrastructure, such as firmware
upgrades of the EMC Centera.

4.8.3. Job Scheduling

4. Control Objective 4: Controls provide reasonable assurance that processing is appropriately
authorised and scheduled and that deviations from scheduled processing are identified and
resolved.

Control

41 Maintenance of Job Schedules: Access to amend job schedules is restricted to appropriate
Fujitsu personnel.

42 Failed job schedules are monitored: Automated alerts are configured and sent to relevant
teams upon the occurrence of a batch job failure. These are investigated in line with the incident
management process.

4.8.3.1 HNG-X Job Scheduling

Jobs are scheduled within the data centre environment with the Tivoli Workflow Scheduler (TWS) which is
used to orchestrate the execution of jobs within the environment. Each vertical application has its own set
of tasks which are defined and TWS is used to schedule those and maintain the dependencies within that
application.

The platform architect will outline the required jobs needed for that platform as part of the High Level Design
(HLD) document. It is then the responsibility of SMC to validate that the defined jobs are appropriately
configured within TWS. SMC also performs day to day monitoring and management of the Tivoli toolsets.

If there are job errors/failures in the daily processing, alerts are sent to the Tivoli Business Service Manager
(TBSM) via TWS. These alerts are then identified as part of the SMC proactive monitoring of the TBSM
tool, further detailed in Control Objective 6 below. SMC will then raise a TFS ticket to the Unix Team based
in IRE11 to investigate and resolve the job failure (4.2).

Access to maintain and amend schedules is restricted to the Systems Management based in Blackpool
(4.1). If changes are required to the job schedule, it will follow the standard MSC process described in
Control Objective 8.

4.8.4 Availability and Capacity Management

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5. Control Objective 5: Controls provide reasonable assurance that system availability,
performance and capacity are routinely monitored to help ensure that potential issues are
captured and investigated.

Control

51 HNG-X and Credence Performance Monitoring: The SYSMAN tool (Tivoli ITM) proactively
monitors CPU, Memory, Disk utilisation and capacity of internal services on these platforms,
raising alerts for investigation by the SMC as appropriate.

5.2 HNG-X and Credence Capacity and Availability Monitoring: The Tivoli ITM tool proactively
monitors the availability of Wintel, Oracle and Unix platforms, feeding platform availability data
to Tivoli Business Service Manager (via Netcool Omnibus) about the availability of platforms.
Tivoli Business Service Manager presents this data in a business context to the SMC,
highlighting service affecting issues.

5.3 HNG-X Monitoring of Service Delivery: A monthly Service Review analysis is provided to
POL to review details of capacity, availability and incident management performance against
the agreed service level targets (SLTs).

4.8.4.1. HNG-X/Credence Capacity and Availability Management

SYSMAN (Systems Management) is a generic name for the set of platforms and software that provide
System and Estate Management support to all HNG-X Platforms (including Credence infrastructure). This
includes the capture of availability information for the in scope platforms via the IBM Tivoli Monitoring (ITM)
tool (5.1).

Fujitsu does not monitor the Credence applications or middleware such as oracle databases supporting it.
It only monitors the application servers from a hosting perspective such as health of the platform and disk
space.

SYSMAN3 and SYSMAN4 (versions in use) comprises the following tools:

Tool Scope
IBM Tivoli Monitoring (ITM) Proactive monitoring of Data centre Platforms.
Tivoli Netcool Omnibus Event collection from:

« Data Centre.

« Branch Estate.
e Networks (NNM).
e EMC Storage.

e Applications.

Tivoli Business Service Manager (TBSM) Presentation of alerts and events in a business
context.

Tivoli Provisioning Manager (TPM) « Data Centre software provisioning
« Branch Router and Switch management.

Tivoli Endpoint Manager (TEM) e Software distribution to the Branch Estate.

e Reference data delivery to Branch Estate and
Data Centre.

Tivoli Workload Scheduler (TWS) Monitors and controls workflow throughout the POL
infrastructure.
Tivoli Netcool Reporter Reporting Product for SYSMAN reports.

Oracle Enterprise Manager (Oracle Grid) (OEM) I Monitoring of Oracle Databases.

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SYSMAN3 and SYSMAN4 collect events using Tivoli Omnibus and present this to the SMC team via the
Tivoli Business Service Manager (TBSM) tool, which provides views and alerts in a business context,
correlated to the application or system that is impacted (5.2).

e Events collected by a SYSMAN version from the counter estate are sent to the Audit Server from
the SYSMAN platforms and includes details related to the following:

© Quality of Service.
¢ Operating System.
e Application and Branch Router.

Systems within the Data Centre are proactively monitored through the use of ITM agents which gather the
event data at regular intervals and measure the data against thresholds and raise alerts if the thresholds
are breached.

ITM includes operating system agents that alert on CPU and Disk space events. Databases are also
monitored using Oracle Enterprise Manager (OEM). Custom Agents are used within HNG-X to capture:

¢ Radius Authentication Events.

« Netcool Event Statistics.

« BNS Statistics.

e HNG-X Application Statistics.

SYSMAN feeds alerts into Tivoli Omnibus using event probes which include:
e SNMP Traps.
e Unix (Solaris and Redhat) Syslog probes.
« Unix SyslogNG (Syslog Server).
« Windows Event logs.
eText file (Application logs).
e _ EIF Probe (Integration to Tivoli Monitoring ITM).

The SMC monitors the output from the Tivoli systems and raises appropriate alerts via the TFS toolset and
where appropriate KEL fixes, incidents or major incidents are applied.

Fujitsu does not monitor the Credence applications or middleware such as oracle databases supporting it.
It only monitors the application servers from a hosting perspective such as health of the platform and disk
space.

Access to administer the tools is restricted to authorised users.
The Fujitsu Problem and Incident Management team report the branch and central branch and central

network availability against the agreed SLTs including the ‘Branch and Counter’ availability as well as the
network availability on a monthly basis to the SSC (5.3).

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4.8.5 Incident Management

6. Control Objective 6: Controls provide reasonable assurance that significant operations
incidents are adequately reported, tracked, monitored through resolution and resolved timely.

Control

61 Incident policies and procedures: Fujitsu has documented policies and procedures for
managing incidents impacting the in scope applications which are available via EMEIA Connect
to Fujitsu teams.

6.2 Incident prioritisation: Incidents are assigned a priority in accordance with the severity levels
agreed with POL.

6.3 Incident resolution: Incidents are resolved in a timely manner, as per the assigned priority.

6.4 Major & Security Incident review: Once a Major or Security Incident is resolved, a formal

closure and review is performed, including, if applicable, a Root Cause Analysis.

6.5 Incident reporting: On a daily basis, the Fujitsu HSD/IMT reviews the number and severity of
outstanding incidents in TFS.

6.6 Alert handling: The Tivoli ITM and Netcool Omnibus tools automate the collection of events
and feed them to the Tivoli Business Service Manager to highlight areas of concern to the SMC.

4.8.5.1 Incident Management Process

Fujitsu Post Office Account (POA) follows its own implementation of Fujitsu's Corporate Incident
management process (6.1). It has documented procedures for managing incidents impacting the in scope
applications which are available via EMEIA Connect to Fujitsu teams. These documents are also available
on Dimensions and the key ones are Customer Service Problem Management Procedure
(SVM/SDM/PRO/0025), POA Incident Enquiry Matrix (SVM/SDM/PRO/0023), POA Operations Major
Incident Procedure (SVM/SDM/PRO/0001) and POA Operations Incident Management Procedure
(SVM/SDM/PRO/0018).

The process applies to all incidents raised by Fujitsu's POA Major Account Controllers (MAC) team or by
the System Management Centre (SMC) (out of hours or for systems monitoring tools), where they are
related to the Fujitsu outsourcing contract. Post Office Limited (the user entity) appointed Atos as their
Service Integrator including the primary service desk function (Atos Service Desk, which may also be
referred to as SISD).

Fujitsu has defined an incident as “Any event which is not part of the standard operation of a service and
which causes an interruption to, or a reduction in, the quality of that service”.

POL staff, e.g., Post Masters, either raise incidents with the ATOS Service Desk or POL’s Network
Business Support Centre (NBSC) and, where relevant, they are passed via the ATOS Service Desk on to
the Fujitsu POA MAC or SMC desks. Fujitsu raised incidents are logged and managed using the Triole for
Service (TFS) tool which also produces various reporting criteria on incidents. The ATOS Service Desk
raise incident tickets in SDM12 which feed via a HDI link into TFS and, therefore, indirectly ATOS Service
Desk can also raise TFS incidents. Feedback and responses on the ATOS Service Desk raised incidents
can be sent back to SDM12 over the HDI link. This HDI link does not support incidents raised in TFS by
Fujitsu teams.

Fujitsu POA incidents raised by the MAC team are either voiced to the ATOS Service Desk by phone or e-
mailed. Fujitsu POA incidents raised by the SMC, e.g., those that are for external third party suppliers to
POL, are generally phoned through to the ATOS Service Desk for them to manage the POL suppliers.

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On a daily basis, the Fujitsu MAC team reviews the number and severity of outstanding incidents within
TFS. The scope of the process is from the receipt of an incident by the MAC/SMC, through to the successful
workaround or resolution of the incident.

The key objectives of the process are:

Log, track and close all types of incident requests.
Respond to all types of incident requests.
Restore agreed service to the business as soon as possible.

Resolve incidents within the target timescales set for each priority level within the Service Level
Agreement(s).

Ensuring incident priorities are linked to business/user impact and business urgencies.
Keeping the user informed of progress.
Reduced unplanned downtime.

Improved customer satisfaction.

All incidents reported by ‘contact’ with the MAC/SMC desks or the ATOS Service Desk, can transfer
incidents from SDM12 into TFS. A Contact is defined as SDM12 incident transfer from ATOS Service
Desk, voice, e-mail or a Tivoli Alert generated by the Tivoli Event Monitoring tool as the methods of
communication with the MAC or SMC and fall into the following categories:

Business process error.

Hardware (Data-centres) or software error.

Request for information e.g., progress of a previously reported Incident.
User complaint.

Network Error.

Logging via HNG-X web interface.

Severity and Service Level Target (SLT) information.

Evidence of an Error.

System Alerts received automatically from transaction monitoring tools. Due to the urgent nature
of some of these alerts, they may be dealt with directly by the Fujitsu Software Support Centre
(SSC), with an update of workaround or resolution supplied to MAC/SMC.

The initial detection stage is the responsibility of the MAC and SMC, who receive calls from Users:

Fujitsu Service Lines or Functions.
POA IT Service Management.
Third Parties.

Fujitsu Service Delivery Management.
ATOS Service Desk.

The main roles required by the process are:

Incident Manager - To drive the Incident Management process, monitor its effectiveness and
make recommendations for improvement. The key objective is to ensure that service is improved
through the efficient resolution of Incidents.

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e Service Desk Agent - To provide a single point of contact for users, dealing with the management
of routine and non- routine Incidents, Problems and requests.

e Incident Resolver - To accurately diagnose and resolve Incidents and Problems within SLA, and
to assess, plan, build/test and implement Changes in accordance with the Change Management
Process. This role will typically be fulfilled by the support teams and service delivery units.

Once the details of the incident are recorded in TFS the MAC/SMC team assigns a priority level to the
incident (ATOS Service Desk assign incident priority before transfer to TFS). If the call is classed as a
Security Incident or Major Incident it follows a different route detailed overleaf.

Incidents in TFS are allocated a priority which should be aligned to the potential impact of the event and
the urgency. The impact of an incidentis derived from a combination of its criticality (also known as severity)
and the number of users affected, whereas the urgency is calculated from the required speed of resolution
for the agreed Service Level Agreement for the service(s).

Alternatively, the priority maybe assigned using the information contained within the Knowledge Entry Logs
(KEL) within the Knowledge Database.

The Incident Management process contains 5 stages as detailed in the diagram below and ownership
passes between the various service lines and towers delivering the service.

1
< > Incident Detecting, recording and initial
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> Incident closure
Figure5. IncidentManagementProcess
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When a new TFS incident is raised or received, the Knowledge Database is checked for KEL information
about the issue which provides avoidance actions. Where applicable, a resolution or work aroundis applied
and details are linked to the parent Incident/ error log for this known problem and the incident is closed. If
the incident is not resolved by either the MAC or SMC teams, the TFS call is passed to the appropriate
Service Delivery Unit (SDU).

Incidents are first assigned a criticality value and then an urgency value based on the criteria listed further
below. Once these are determined, the incidents is assigned a priority value (1 - 5).

Criticality Value (1-5)
Critical 1
High 2
Medium 3
Minor 4
(Cosmetic — Incident only) / Change (Incident & Problem) 5

Urgency Definition
1 e Has a significant adverse impact on the delivery of service to a large number of end
users.

« Causes significant financial loss and/or disruption.
e Results in any material loss or corruption of customer data.

For example, incidents with this urgency may affect the COMPANY.

2 « Has a moderate adverse impact on the delivery of service to a large number of end
users.

e Causes a financial loss and/or disruption to the customer which is more than trivial but
less severe than the significant financial loss described in the definition of an Urgency
levelof 1.

For example, incidents with this urgency may affect a VIP SITE.

3 « Has a moderate adverse impact upon the delivery of service to a small or moderate
number of end users.

For example, incidents with this urgency may affect ALL COUNTERS IN A MULTIPLE

COUNTER BRANCH or a SINGLE COUNTER BRANCH.

4 « Has a minor adverse impact upon the delivery of service to a small number of end
users.

For example, incidents with this urgency may affect a SINGLE COUNTER INA

MULTIPLE COUNTER BRANCH.

5 « Has no impact upon the delivery of service

For example, incidents with this urgency may affect a SINGLE PERIPHERAL IN A
MULTIPLE COUNTER BRANCH.

If the incident is a known currentissue, then the ATOS Service Desk is advised of the status of the incident
and the TFS parent incident is updated with the new child incident and the SDU(s) managing the parent
incident’s resolution are advised of another occurrence of the issue. The SDU investigates and diagnoses
the incident, based on the information in TFS, together with new information. The SDU also coordinates
where Fujitsu sub-contract third parties are involved.

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The SDU will produce a workaround or resolution for the problem. The SDU then either applies the
workaround or resolution or passes it to the MAC/SMC to implement. The parent incident record is the first
incident for an issue in TFS and is used as a tracking call for incidents with children incidents.

The incident is then passed to the MAC/SMC to manage and when the call is resolved and this is agreed
with the person, team or third party who raised it the TFS incident record can be closed. The MAC/SMC
team may request incident closure from the POA Duty Manager, e.g., where neither POA nor an external
POL third party has identified the underlying cause of an event which triggered an incident.

Throughout the incident life, the MAC/SMC retains ownership for monitoring and keeping the incident
logger informed of its progress, unless the incident is specifically software related, in which case SSC holds
the responsibility for confirming details of resolution.

The MAC/SMC manage the complete end-to-end incident process within the Fujitsu POA domain. Their
activities include:

e Regularly monitoring the status and progress towards resolution of all open Incidents.
e Proactively keeping the ATOS Service Desk informed of progress.

e Monitoring Service Level target (SLT) information and escalating accordingly if an incident looks likely
to breach SLA thresholds.

Fujitsu is required to work to POL Service Level agreements and availability targets and not incident
resolution times. So Major incidents would be resolved in as short a time as possible, dependent on the
nature of the incident. The high priority placed on a Major Incident by Fujitsu’s POA management team
ensures that the full resources required to resolve it are available and committed.

4.8.5.2 Major Incidents Definition

As a general rule, a Major Incident will always be an incident rated as priority 1 in the POA BU Operations
Incident Management Procedure document (SVM/SDM/PRO/0018),or a series of connected lower severity
rated incidents, which combine to have a significant business impact. However, not all incidents rated at
priority 1 qualify as Major Incidents. This is because the severity levels do not necessarily translate to the
global business impact on POL’s business. For example a single counter post office which is unable to
transact, regardless of its business volumes, is rated as a priority 1.

A Major Incident can be triggered by a range of causes including network triggers, application/service
outages, hardware/infrastructurefailures or security issues.

In the event of a Security Major Incident (which may also include PCI Incidents), the POA Security
Operations Team (SecOps) must be alerted, see details below. The POA incident procedure
(SVM/SDM/PRO/0018) Appendix A and HNG-X Security Business Continuity Plan (SVM/SDM/PLA/0031)
provides guidelines on potential security incidents.

4.8.6 Major Incident Process

An initial impact assessment of an incident is undertaken by members of the MAC team to determine if it
should be classified as a priority 1 incident, as described above. The POA Duty Manager ultimately decides
if the incident should be handled as a major incident. As a general rule the POA Duty Manager will
undertake the role of the Major Incident Manager and generally calls a Technical Bridge.

The POA Duty Manager will consult with the POA Business Continuity Plans to identify if the potential Major
Business Continuity Incident (MBCI) or MBCI triggers have been met and inform the POA Business
Continuity Manager if appropriate.

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With agreement from POA Senior Service Delivery Manager/s, or Duty Manager out of hours, a Short
Message (Phone text) will be sent to POA Management, and Fujitsu Service Delivery/Service Support team
managers as applicable, alerting to the potential existence of a Major Incident.

Generally, ATOS Service Management will be informed by POA Service Managementof the Major Incident,
where impact is across domains.

Once a Major Incident is opened the relevant internal SDUs, Fujitsu teams and Fujitsu third party suppliers
are contacted to initiate investigation and diagnosis. A Technical Bridge (technical conference for Technical
experts and SDU’s to discuss and analyse the incident and to formulate an action plan to restore the service
to POL without delay), which is managed as an internal conference call, is scheduled. This generally has
a standard agenda and all the relevant Service Delivery Units, support teams and Service Delivery
Managers (SDM) are invited. The Technical Bridge is technically focused and the Major Incident Manager
should document the activities and actions of the Technical Bridge so that a Major Incident Report can be
produced.

The Technical Bridge aims:
e To discuss and agree the recovery investigation & resolution of Major Incidents.
e To provide a forum for up-to-date progress reports.

« To aid communication and, if necessary, support the Technical Recovery Manager (TRM) in
producing a short term technical recovery plan and if appropriate longer term corrective actions.
These will be included in the Major Incident report. This ensures that Major Incident progress is
known by all, whilst also ensuring that all actions whether short term or long term is clearly stated.

¢ To collate information for inclusion on the Service Portal.

If the outcome of the Technical Bridge is that the Incident is determined Business As Usual (low) then an
SMS communication will be sent stating that the Incident is not a Major Incident, and the incident is then
resolved using the standard incident management process.

The Major Incident Manager will also distribute actions (provided by the Technical Recovery Manager
(TRM), following the Technical Bridge conference call. If during the Technical Bridge a clear recovery path
is identified, this is discussed and agreed on the call. Where co-operation or approval is required from
ATOS Service Management or POL, and their third party suppliers, the POA SDMs or Senior SDMs will
contact them and request the approval or assistance. Following agreement the recovery is implemented.

After the Technical Bridge, the Technical Recovery Manager will liaise with the SDUs and/or Fujitsu third
parties to progress either the investigation or recovery. If no clear recovery path is identified, the decision
is then taken on whether to escalate for Service Bridge direction. Service Bridges conference calls are held
with ATOS Service Management and/or Post Office Limited (and possibly their third suppliers).

The nature of the Major Incident determines which POA BU Service Team members and ATOS and/or
POL Managers are involved in the Service Bridge.

The purpose of the Service Bridge is to:
e Provide appropriate direction on Incident resolution.
e Provide added impetus to restoration of service ASAP.
e¢ Define communication intervals to Key Stakeholders.
« Provide focused Incident Management in line with the impact and severity of the Incident.
Once the Incident is deemed to be resolved, a final Technical Bridge is held to agree and confirm the

resolution of the Incident. The Major Incident Review date is set at the final Technical Bridge. SMS
communication is sent confirming resolution of the Incident.

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A Draft Major Incident Report is distributed within 24hrs of resolution of Major Incident. Once a Major
Incident is resolved there is a Formal Closure of the Major Incident and a review of the Incident including
consideration of:

e Lessons learnt.

¢ Incident definition.

¢ What went well?

¢ Timeline.

e Changes required to infrastructure.

« A review of the Major Incident Communication Procedure.
e Root Cause Analysis.

« Business impact.

e Action plan, including any changes requiring MSC’s.

* Service Improvement Plan update.

e Review service risk(s) and update Risk Register as appropriate.

Note: Where the underlying cause of a Major Incident is in a third party domain, e.g., a Fujitsu non-POA
team or POL third party supplier it is expected that they, or ATOS as Service Integrator, arrange the
conference calls, hold the formal closure review and produce the Major Incidents reports.

4.8.7 Security Incident Process

An information security incident is: "an adverse event or series of events that compromises the
confidentiality, integrity or availability of Fujitsu Services Post Office Account information or information
technology assets, having an adverse impact on Fujitsu Services and/or POL reputation, brand,
performance or ability to meet its regulatory or legal obligations." This also extends to include assets
entrusted to Fujitsu including data belonging to Post Office Ltd, its clients and its customers

Fujitsu classifies Security incidents using one of two levels of severity:
«© A MINOR incident will normally have limited and localised impact and be confined to one domain.

e« A MAJOR incident will have a significant impact on the Network Banking Automation Community.
NB. For a Major Incident the POA Major Incident Process (SVM/SDM/PRO/0001)is followed.

Whenever a security incidentis identified which presents a serious threat to conducting normal business it
is contained and isolated as quickly as possible.

A security Incident is first notified to either the MAC or SMC Team then transferred to the SecOps call
stack, once it is initially assessed as a Security Incident by MAC/SMC.

Security Incidents may also be reported directly into the POA SecOps team via the reporting button on the
POA Portal. The initial report will be validated & clarified by SecOps, with calls made to the initiator if more
information is required. SecOps will follow team work instructions to progress their investigation.

All Security Incidents are reported to the SecOps team via a dedicated mailbox and escalated by phone if
necessary. Depending on the type of Incident and the severity of the incident, POA Security makes the
decision to escalate details to the POL/ATOS Security teams. In the case of Data Centre incidents, POA
Security also informs the Data Centre Manager if this has not already been done.

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Regardless of the severity of the incident, when a compromise in card data occurs, the incident is reported
to POL Security so that POL can comply with its contractual obligations with its card acquirer.

The investigation of a reported incident is carried out by a nominated investigator from the POA SecOps
team. ATOS and POL Security Teams will be on hand to provide support as required and in accordance
with the POL/ATOS Information Security Incident Management Procedure. The investigator will obtain as
much original evidence as possible to ensure that is admissible in court, if required.

Following the initial investigation and where considered appropriate, the appropriate senior manager within
POL liaises with the local Police or other external agencies.

When an investigationis closed the POA Security Manager seeks to ensure that details of the investigation
have been recorded and can be made available for Route Cause Analysis, trending & lessons learned.

4.8.7.1 Security Incident Trends and Checks
POA Security Team carries out a monthly check of investigations and creates a summary report highlighting
incidents to the POL Head of Information Security.

The report highlights trends or weaknesses which may need to be raised at future Information Security
Management Forums (ISMF). POA will also submit a quarterly report to the Fujitsu Security Management
Forum, to ensure that Fujitsu Security Incident trends can be reviewed in the round.

4.8.7.2 Incident Reporting

The Communications Management Team (CMT) prepares a daily status report of all open incidents
affecting the branch and counter availability. The report is sent to Fujitsu Incident Management, Atos and
POL for review

4.8.7.3 Alert Handling

As mentioned in the Control Objective 5 process narrative above, The ITM and Netcool Omnibus tools
monitor the platforms for availability and feed the alerts logged in TBSM for SMC review. Incidents are only
logged in TFS for alerts that trigger a status change, which then follow the incident management process
described above.

4.8.8 Network Incident Management

Incidents relating to network problems are managed using the standard incident management processes
and controls described above.

4.8.9 Networks

7. Control Objective 7: Controls provide reasonable assurance that networks are managed to
contractualand site requirements, monitored for availability and response times and issues are
identified, tracked and resolved.

# Control

5.3 Monitoring of Service Delivery: A monthly Service Review analysis is provided to POL to
review details of capacity, availability and incident management performance against the
agreed service level targets (SLTs).

7.1 Network performance criteria: Network availability and performance requirements are clearly
defined between Fujitsu and POL in the Network Service policies and network service is
measured and monitored using these agreed service levels.

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# Control
7.2 Network change management: Network changes are managed using the standard Fujitsu

MSC process which includes authorisation, testing (where deemed appropriate) and approval
prior to deployment.

7.3 Network availability monitoring: Network availability is monitored using several tools, which
send automated alerts to the Network Operating Support Service Team (NOSS) if key
components are unavailable, or if traffic levels breach predefined thresholds.

74 Network incident management: Incidents relating to network availability are managed using
standard incident management procedures.

4.8.9.1 Network Service Description

POL defines the network services it requires from Fujitsu in two contract controlled documents - the Branch
Services Network Service Description (SVM/SDM/SD/0011) and the Central Network Service description
(SVM/SDM/SD/0012)which define the following (7.1):

* The Service definitions.

e Availability Requirements.

e Service levels targets.

e Assets and license.

« Dependencies and Interfaces with other Operational Services.
e Post Office Dependencies and responsibilities.

e Business Continuity.

e The Documents set supporting the Service.

4.8.9.2 Provision of the Network Service

Fujitsu provides network services to POL using its Hosting and Network Services (HNS) teams. These
teams provide technical support and implementation for the following products and platforms:

e The HNS Post Office Account Network team based in Warrington supports Cisco Routers,
Switches, Load balancers and Firewalls.

e Aseparate team also based in Warrington supports the Intrusion Detection System (IDS) and proxy
servers (McAfee Web Washer & Bluecoat Proxy SG).

e Acentralised Network Operations Support Service (NOSS) overviews and monitors the networks.

Wide Area Network Services are provided through a number of third parties (such as Vodafone, Virgin
Media, and BT) depending on the circuit or communications requirement.

Controls operated by these third parties are outside the scope of this report.

4.8.9.3 Network Change Management

Fujitsu follows the MSC change management structure for all changes to network equipment as described
below in Control Objective 8 (7.2).

4.8.9.4 Network Availability Monitoring

Fujitsu has its own dedicated NOSS team to monitor the availability of Network Services to POL using TFS
(and MSC if applicable) to raise problems or incidents to the Network, Firewall or IDS teams for resolution
which, where applicable, follow the standard Incident management process described in Control Objective

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6 above (7.4). Networks are monitored for availability via the Spectrum, Netcool and HP Openview tools
which send automated alerts to NOSS.

4.8.9.5 Network Service Monitoring

The Fujitsu Problem and Incident Management team report the branch and central branch and central
network availability against the agreed SLTs including the ‘Branch and Counter’ availability as well as the
network availability on a monthly basis to the SSC (5.3).

4.8.9.6 Overview of Network Technical Design

The Network that Fujitsu provides to support its services and applications to POL is divided into the
following at the top level:

e IP Network Space Data Centre Networks.
« Branch Networks.

* Transit Networks.

« Wide Area Networks.

As shown in the diagram below:

IRE 2x atarftentre’ Data Centre
1p Storage

Core Tier

High Speed Layer3 switching between
Distribution Tiers

Conneativity between Data Centre's

Distribution Tier
Server port density Server

Virtualization Branch Client connectivity

Load Balancing sz 7 SAN
Security (VPN, Firewalls, IDS) /
3 Post ~
ranch Client of Support Client

Access Tier Hee

Remote Access ) ] I SAN
Connestivity between Data Centers I extension

Security (VPN, Firewalls IPS)/ I

Va \ f
7 ]

CA Branch Wide Area Network) C RMGA provided Wide Area Network » ye Alien
a a _ ie area Newons

a Remote [Client Post Support
Branch LAN Location Office
[ Peering Arrangement TransitLAN I
Post
(Gient & Suppor wmode
letwor \wetwor letwor Neworkachtectuestvsd

Figure 6. Network Design

Testing is provided through the standby data centre for Live System Test and System and Volume
Integration during normal operations. This test support would cease, if the standby data centre was
required to act as the primary. Under normal business as usual conditions, the trafficis segregated between
the production and test environments by means of various physical devices and logical means of separation

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as appropriate. Change Managementis strictly controlled through a variety of internal change & release
processes and procedures — see Control Objective 8 below for more information on change management
for network components.

The network is divided into 11 Security Domains. The term Security Domain is defined to mean a collection
of platforms and network components grouped together based on type, perceived vulnerability and risk
rating. Even so, it may be necessary to restrict traffic between platforms in a common Security Domain
(intra-domain traffic) through the implementation of logical separation, (using VLANs), or physical
separation, (using separate network segments in the same domain).

Any traffic which crosses network domain boundaries (inter-domain traffic) must pass through an
enforcement point that restricts data flow based on its source, destination, protocol, port, type or content /
format. This can be a firewall, router or other in-line control point. (i.e., the control is physically part of the
data path).

The diagram overleaf illustrates how Network Domains fit within the Network tier model.

i

Figure 7. Network Tier
Network Domains are the basic building blocks for enforcing security in the Network.

The Domain structure places a logical ring around the logical Security Perimeter of the HNG-X Network in
the data centre, which extends beyond the data centre in some cases and is protected by means of IPSEC.
VPN technology using access lists to allow specific classes of traffic to enter HNG-X. The perimeter can
be best described as the collection of devices managed (or monitored) by Fujitsu Services. At the boundary
of these managed devices are firewalls (hardware or software-based), and the perimeter will be secured
according to firewall guidelines laid out in ARC/NET/ARC/0001.

4.8.9.7 Network Asset Management

Network Assets are managed through Cisco Works Inventory along with an offline hardware inventory
register. Hardware and Software maintenance is on a business case basis and is based on business
availability targets.

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4.8.10 Change Management

8. Control Objective 8: Controls provide reasonable assurance that modifications to system
software and networks are authorised, tested, approved, properly implemented and
documented.

Control

841 Change management: The MSC toolset is used to manage all changes with a joint decision
between Fujitsu and POL as to which parts of the tool are relevant for a change.

8.2 Change approval: All changes must be authorised by the Fujitsu Duty Manager or technical
bridge, with approval being documented in the MSC system. Changes that cause major service
interruption must also be authorised by the Change Advisory Board (CAB), with approval being
documented in the meeting minutes and within the MSC system.

8.3 Emergency Changes: A change deemed necessary in order to resume live service will be
agreed and authorised and documented during the incident along with updates to POL at an
agreed timeframe dependent on the severity of the incident.

4.8.10.1 Business as Usual Change

All changes that affect service or operational change and require formal release are subject to the Managed
System Change (MSC) change process (8.1). Key change types that fall into scope for this process are
listed below:

e Major Business Change — Request from Customer or Fujitsu for large-scale change to the service
or service infrastructure, such as business platform, operating system, business unit location move,
add new business or major location to service.

e Business Change — Request for catalogue or other change for which impact assessment, planning
and costing are required.

e Minor Change — Request for a standard catalogue service or administrative change of known low
impact.

e There are three distinct priorities of change:

o Emergency/RetrospectiveChanges — These types of changes exists for the sole purpose
of implementing a critical modification to a live environment to ensure the continuation of
an existing service, and preventing interruption to business activities. The life cycle is
followed either as an Emergency change needed to be implemented within up to four
hours’ time or retrospectively for a change already made and both requires the duty service
manager's prior authorization.

o Expedited Changes - An expedited change is made when a compelling business reason
exists to make the change within a shorter time scale than that agreed within the SLA.
Expedited changes follow the complete Change life cycle, but in an accelerated form, and
require an increased level of delegated authorization and may be subject to CAB approval.

o Normal Changes - A normal change is made in line with the time scale contained within
the SLA or for internal changes as mutually agreed and may be subject to CAB approval.

These changes include POL authorised project work with Fujitsu, POL 3" Party or POL Network Partners.
These types of changes are supplied by POL and are then recorded in a MSC and assessed/reviewed by
Fujitsu staff with issues or concerns fed back to POL.

The Manage Service Change (MSC) operational change process uses the Fujitsu MSC toolset to progress
the change through control gates which are described overleaf.

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The MSC toolset is secure and auditable (at both system and user levels with time stamping being
employed). As changes are made to a change record and it progresses through the control gates listed
below with permissions and ownership of the change recorded at the various stages.

Both POL and Fujitsu change control teams participate in tailoring the questions in the MSC toolset to
enable the relevant information to be obtained for POL's internal change process. This helps their network
partners and third party suppliers assess a Fujitsu-controlledchange for risks and impacts. These controls,
along with the KPIs established by POL to monitor the MSC toolset information standards for quality,
timings of the notice of the change, help to ensure the efficient and effective control and management of
operational change.

Once a change is ready to be tested, it becomes subject to the Manage Service Change (MSC) process.
Change Advisory Board (CAB) approvals are obtained for major changes before deployment can begin,
with approvals documented both in CAB meeting minutes and within the MSC system (although these are
not formal signoffs, for example, they can be copied in from POL e-mails).

Achange goes through following stage gates before being implemented to production:
e The request for the change from POL (projects).
« Costs and Impacts are sent to POL and approved or rejected (projects).
« If accepted, then a set of Requirements is jointly agreed with POL (projects).
e A projectis initiated and project plans drawn up (projects).

e Architecture, High Level Designs and Low Level Designs and interface documents are written and
where appropriate discussed with POL.

e¢ Development of Code is undertaken (projects).
* Code is tested by development (projects).
e MSC is used to Record and authorise BAU changes also (Operational changes).

e The MSC systems records assessment by other potentially impacted teams to determine risks
associated with the change in their area (Operational Changes).

« The MSC systems contain a plan of the change (Operational Changes).

« The MSC team agrees the change internally and with the customer where relevant at CABs,
(Operational Changes).

« The CAB review helps to ensure (Operational Changes):
othe change meets the governance requirements;
othe change does not overlap with other changes;
o_ that the change has considered any group or associated further risks and impacts by doing
the change; and
othe CAB follows the standard CAB Terms of Reference (TOR) which defines:
= Attendees.
= — Sign off or rejection or associated actions.
= Recording and issuing of minutes from the CAB.
= Updating the MSC toolset with the CAB decision.

¢ The Change Manager is responsible for the following(Operational Changes):
Facilitating authorisation to implement change.

Authorising and Communicating the Change Schedule.

Chairing the CAB/s (see CAB).

Approving or rejecting changes.

Reviewing and ensuring process conformance.

00000

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e If the above are in place, the designated Change Manager authorises the change within the MSC

system to proceed and implement the change (Operational Changes) (8.2).

e Post implementation outcomes of change are recorded in a post implementation review and
records are updated and success criteria examined and lessons learnt are documented

(Operational Changes).
« Change close down (Operational Changes).

In summary, MSC is a Fujitsu toolset that allows a securely accessed, time stamped auditable system to
record change, provides Service Delivery Units and Service owners with audit trails and gives reasonable
assurance that modifications to software and infrastructure are assessed for risks & impacts. The changes
are authorised by the Service owner and Change Manager, are tested by appropriate methods and teams,
and are approved to be deployed to a live environment subject to testing results, they are implemented by
the authorised and approved teams and the changes are documented into new or existing documentation.

MSC Process Steps - Overview

SDM

PMM/Operatio Usage

wal Tacideat I Be cord Proj lpae

Problem or and to proceed
Churn

cz project

Request

Indicative Cost ~=MSC_Business Request

Client approval
of Project
Acceptance

Plan

Criteria, Timings
or Operational
Inplementation

RO

implemen:

Operational CAB
4SDU"s Appronal

‘of Imp Impact
js

Accept
‘Sub Request / Implementation

Non Service Alcting -Low Risk

o

i

A= Approve to proceed furher R= OplionalReview A ~ Approve ATI Approval to implement

Figure8. MSC Process

4.8.10.2 Emergency Changes

Emergency changes are progressed through one of following two methods:

e aservice incident; or
e the emergency CAB (E-CAB) process.

Both processes will document changes required in the MSC toolset.

Client Project
Closure
Acceptance
Final Cost &
Service
Acceptance

,, Confirmation of SDU

Testing Asset
‘&Configuration
Update

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A service-affecting incident calls for a Technical Bridge which is convened (see the Incident Management
section in Control Objective 6) to analyse the cause and impacts of the incident. This team will include
service managers, an incident manager and technical staff and the Operational change manager. Any
change deemed necessary in order to resume live service will be agreed and authorised and documented
during the incident along with updates to POL at an agreed timeframe dependent on the severity of the
incident.

If the level of the emergency is of a lower impact such as a disk failure, the resolver (often an incident
manager) will request that an E-CAB be called. The Change manager will call the E-CAB meeting together
following the process as documentedin the CAB Terms of Reference (TOR) via a conferencecall to discuss
the change with both technical staff and service managers. The MSC record will be sent to the mandatory
assessment teams with a timeframe of turning around the assessments tasks within an hour and this is
documented with the MSC ticket and TFS is updated accordingly. The incident or change manager will
contact the POL Change Control to discuss the emergency and ask for verbal approval to proceed during
which time the Fujitsu change Administration staff will send the change to POL Change Control for their
records (8.3).

9. Control Objective 9: Controls provide reasonable assurance that new or modified application
software development efforts are authorised, tested, approved, properly implemented and

documented.
# Control
9.1 System Development and Maintenance policies and procedures: Fujitsu has a formal

Systems Development Life cycle (SDLC) which incorporates phases including initiation,
Requirements, Definition, Design, Development, Deployment and Maintenance.

9.2 Change Control Board: Depending on the nature, changes must either be approved by the
Change Control Board (CCB) before progressing into development or by the PEAK Targeting
Forum (PTF).

9.3 Design Proposal: Projects are outlined in a Design Proposal (DPR) that is stored in SharePoint
and is reviewed and approved by POL and Fujitsu management.

9.4 Change Testing: Changes are tested in line with the defined procedure.

9.5 Ability to implement changes: Only appropriate individuals have access to move code builds
between environments or promote transports to live. Segregation of duties is enforced between
users able to develop and implement changes respectively.

9.6 Approval to implement changes: POL approval is required to promote application software
changes to the live environment. Approval is captured within the relevant MSC.

Fujitsu’s change management process consists of two components - Project Changes and Business as
Usual (BAU) changes. Project Changes relate to the delivery of new or changed services and BAU
Changes to Operational changes to the live service provided to POL (9.1).

4.8.10.3 Project Changes for HNG-X

External requests for changes are be raised by POL on a Change Request (CR) and sent electronically to
Commercial Change Management (ChM) and allocated to a Change Owner and converted into a Change
Proposal (CP) by Fujitsu.

All CPs are initially reviewed and impacted by Programme teams and impacts are returned to ChM where
they are collated and shared with the Change Owners. Where appropriate the CPs indicate that they have
the Design Authority Board (DAB) approval.

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Once reviewed, CPs will be submitted to the Programme Change Control Board (PCCB) for agreement to
progress the CP. The PCCB typically meets weekly. The PCCB is chaired by ChM and brings together
representatives from a wide range of functions potentially affected by proposed changes.

Once the PCCB has assessed and agreed the progression of a CP, it will be submitted to the Change
Control Board (CCB), which includes the Account management team, with a recommendation from the
PCCB as to whether the CCB should approve or reject it (9.2).

The CCB typically meets weekly. Change Owners are required to attend to be able to sponsor the change
detailed in their CP. The CCB consists of members who represent the key functions within the Account to
help ensure that if the CP is accepted for implementation, it will:

« Commercial/Finance
o Have no adverse financial or commercial implications.
o  Notincrease the overall risk to the Account/Customercontract and Service commitments.

* Customer Service
o Be operationally supportable and will meet the Account's service obligations.

« Development
o Be developed within the agreed timescales to the required quality level.

« Architects
o Be constrained within the overall architectural solution and is technically viable.

e Testing
o Be tested and integrated to the required quality level within the agreed timescales.

« Business Management
o Not inhibit the Account in exploiting future business opportunities for the Account and its
Customers.

A minimum of three Directors are required to be in attendance for a CCB to be able to reach a decision on
CPs.

Minutes from both of these meetings showing approval of the CP are held in PVCS (Project Change
database).

Once the CCB has approved a change the following occurs:

« Ifthe change is internal the Programme team is advised, time codes and plan activities are set-up
and work can start.

e If itis external, the change will be submitted to the customer (electronically and hard-copy) and
POL reviews the change and then once successfully approved, a formal agreementis signed which
then allows the CP to be progressed.

Project Changes are allocated unique numbers and logged within a database (PVCS) and updated
accordingly. These can be viewed by all members of the team working on that project but can only be
updated, edited and actioned by members of ChM.

All Minutes from the Change Boards (PCCB and CCB) and action points from the same are recorded in
the change history of the change vehicles in the database. Comments and decisions around the changes
are also logged in the change history.

Approvals from the CCB and POL are documented in the relevant change history.

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4.8.10.4 Projects for HNG-X

Fujitsu follows its Corporate Methodology outlined in the diagram below to deliver a project to POL. Each
project has clear requirements, is designed, tested and deployed prior to its acceptance into the Live

Production Estate. All projects are assigned a Project Manager to deliver the specific project with oversight
of all projects by the Programme Director.

Post Office Account Project Lifecycle FUSITSU

Customer
Change

[Execution] [Execution] [Execution] [ELOSURE]

Figure 9. Project Lifecycle

Design & Development Testing

Deployment

The diagram below shows an overview of the design and builds methodology used by Fujitsu to define,
design, develop and deliver a project into the POL production environment.

This Methodology is used for HNG-X projects and projects that integrate HNG-X and SAP.

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HNGxDBM unex design & Build Method Lifecycle Method (v11)

Integration
Protoss

co
TestReprt
(Sry

Sem
IAccertnrce Tes
UAT

Test Execution
Process

Project
Management I

Nay ain
Bocuert OP)

Figure 10. Design and Build Method

4.8.10.5 Definition

POL defines projects according to their business needs and provides these to Fujitsu with the documented
requirements and acceptance criteria.

4.8.10.6 Requirements
Requirements are managed within Fujitsu by the Requirements manager.

POL defines a requirements baseline and where applicable a baseline design proposal (DPR) and Fujitsu
may be requested to assist POL in the preparation of these (9.3).

The Design Proposal contains three key elements:
© The Acceptance Criteria.
e The Work Packages that are built to deliver the project.

« The Monitoring Criteria for the project after go live.

4.8.10.7 Design

Application Development for the in scope applications will be performed by a range of Fujitsu teams
depending on the nature of the project.

4.8.10.8 SDLC Methodology

POA Design and Build Methodology (DBM) engineering lifecycle was derived from the Fujitsu corporate
Applications Design and Build Methodology (ADBM), Infrastructure Design and Build Methodology (IDBM)

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and Test & Validation lifecycles (9.1). This is the SDLC currently used by Post Office Account (POA) team
to modify existing or develop new applications for Post Office Limited (POL). It is defined in the standard
document sets that are specific to the in scope applications.

High level designs (HLD) and Low-level designs (LLD) are the way Fujitsu meets the relevant Design
Proposal requirements and these are stored in Dimensions or SharePoint. The HLD’s and LLD’s for HNG-
X and Credence projects are approved by one of the approvers defined in PGM/DCM/ION/0001 &
PGM/DCM/PRO/0001 (9.3).

4.8.10.9 Code Build and Test

The Development Manager is responsible for the building and testing of code. Code is built in a segregated
environment using appropriate repositories within the Dimensions CM tool (formerly Serena) including
locking the code, the checking the code in and out, and the management of changes. Each project will
have a Development manager who will take the relevant HLDs and LLDs and allocate these to developers.
The Development manager will also develop their own project plan to track progress of the code
development and testing. Code will be checked out by developers with update access in the tool and
worked on within the context of this project plan.

Ageneric code review template is used to review the code and it is approved by the Team Leader or Senior
Designer once outstanding issues are resolved. The resulting review documentis stored in SharePoint.

Individual developers are responsible for producing Unit Test plans which are reviewed by a separate
developer. The initial developer will develop the Unit Test plan which will be signed off by the reviewer. A
developer will then execute the unit test plan and the results are recorded by the Developer in the Unit Test
plan — usually as an appendix and the combined Test plan and reportis stored in SharePoint/ Dimensions.
This evidence of results of testing is then signed off by a separate developer.

4.8.10.10 Integration and Test
HNG-X and Credence has 2 test streams responsible for testing software changes to the live estate:

e Solution Validation and Integration (SV&l):
o Testing against Requirements - Functional and Non-Functional covering business and
infrastructure and based on testing the complete integrated solution.
o Has End-to-End capability for testing with 3rd parties e.g., Merchant Acquirer.

e Live Support Test (LST):
o Final pre-production proving and release deployment validation.

The development-written test automation framework (documented in TST/SOT/HTP/0976) has been
deployed into the SV&I environment to support testing. This automation framework offers the benefits of
unattended execution, and allows the expansion of the automation suite to encompass a larger share of
the regression test overhead.

Testing uses Quality Centre as the test management and defect management tool for defect management.
Quality Centre interfaces with Peak which is the POA Development Defect Management System:
« Adherence to gateway criteria such as test stage entry criteria.

Entry into each test stream (or test cycle within test stream) will be subject to review against a pre-defined
and agreed set of entry criteria. These criteria are set by the Test stream manager. Similarly testing within
each stream will not be considered complete until the testing is adequately reported and a resolution path
for all outstanding issues is understood (9.4):

e Progressive, incremental development, testing and acceptance.

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Each test cycleis subject to entry criteria acceptance. Quality Centre is used to store and measure progress
against project requirements. An assessment of requirements coverage is produced towards the end of
test completion. This feeds into the Acceptance Process which is a joint board (with POL) with agreed
criteria for acceptance.

4.8.10.11 SV&/ Testing Process

Test Analysis is based on requirements and high level designs. Test cases are documented in Quality
Centre (QC) and details are extracted into a High Level Test Plan for each release. This document is
reviewed via POA document management.

Entry into Test Cycles is controlled by Test Readiness Reviews. Test Execution is recorded in QC and
defects are recorded within QC.

Daily and Weekly reports are produced using QC to produce statistics e.g., test coverage. After the last
cycle of testing (pre LST) a report is produced covering the full release.

4.8.10.12 LST Testing Process

Testing is controlled via the Release Managementteam.

Release planning sessions identify maintenance test slots and Peak Targeting Forums (PTF’s) assign
defects into appropriate maintenance releases.

Release Management engage with test via Release Notes and Deployment plans.

LST puts test plans together which are stored in SharePoint and once testing is complete, these are
updated with results. LST assess test results and determine a release sign-off or release rejection position.
The final document is attached to the release peak which is returned to Release Management.
4.8.10.13 Acceptance

The Acceptance phase is managed by the Acceptance manager. The Acceptance manager will review the
progress of the testing teams in completing the testing specified for each acceptance criterion in the design
proposal (9.6). The results of testing are summarised in the Acceptance Report. This is then discussed by
the Acceptance Assessment Board which reviews the Acceptance Report including Acceptance Incidents.
An acceptance incident is where the acceptance criteria has been tested and is either not met or partially
met.

A joint Release Acceptance Board is then held with POL to agree on how to progress the Acceptance
Incidents and overall whether the project as stand-alone entity is ready to be implemented. The decision is
documented in the minutes of the Release Acceptance Board which are held in Dimensions.

The POL and Fujitsu Project Managers will then produce a slide pack for presentation to the Release
Authorisation Board; this board will then consider to approve implementation based on whether:

e The Release has passed the Release Acceptance Board.
e That Fujitsu Service teams are ready to support the new services/functionality.
e That Post Office Service teams are ready to support the new services/functionality.

« That communications to interested parties e.g., Post Masters are ready.
Approval to implement the project is documented in the meeting minutes that are stored in Dimensions.

Once these approvals are in place, the project can be implemented into production.

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4.8.10.14 Deploy and Support

Release management is based around the use of two documentation tools, PEAK and Managed System
Change (MSC), and two delivery tools, Dimensions and Tivoli Provisioning Manager (TPM) (9.5). A ticket
will be created in PEAK for each change or element of a project. The PTF meets on a weekly basis to
review the open PEAK tickets and groups these into deployment groups of typically, no more than 20 PEAK
tickets.

Development creates a PEAK Product Version Baseline (PVB) for the deployment group and this is
effectively what is placed into production on the successful completion of the relevant testing. Development
will then perform unit, component and integration testing as outlined above. Once this is successfully
completed, they will use one of the standard tools to create a build package which is placed in Dimensions.

Integration tests that the baseline package is capable of being deployed into the existing software /
hardware environments and can be regressed off of the Integration testing rig as well as doing some basic
functional testing. Once this has taken place and the baseline package is deemed fit to further progress
into the testing environments, a PEAK Deployable Product Version Baseline (DPVB) is then created to
enable further progression into the Release process.

The package created by Development (PVB) & then Integration (DPVB) respectivelyis then made available
to Release management to be tested in either SV&I for project functional testing with POL and other third
parties ready to be implemented (identified by a INT suffix), or, if it is for current system maintenance for
existing software security or minor bug fixes, it will be implemented identified by a LT suffix in the LST
(Live Support Test) via a RM Release note (RN) will be passed to Software Configuration Management
(SCM). SCM will then place this package onto the Enterprise Provisioning Management (EPM) server
where TPM resides based on receiving authority from Release Management in the Release Note. SCM is
the only team with access rights to move software into the EPM server (9.5). SCM advise RM that the
output is ready to be shipped to the test environment by updating PEAK.RM will via Peak and the MSC
process authorise the relevant operating teams via a sub task MSC to pick up the package and place it into
the relevanttest environments for further testing as outlined above, this task has a reference to the Release
Note. Once testing is complete Release Management will update the release note to reflect this. They will
also create a new release note with the same number but a PR suffix to manage the movement into
production.

At the same time as Release Management releases the RN to the LST team, the ticket will be created in
MSC. MSC is used by Release Management to manage the process steps that need to be completed to
move a change into production. The approvals to move the change through the various stages (both Fujitsu
and POL approvals) are logged in the MSC ticket, and are typically copies of emails pasted into the ticket-
MSC does not use formal workflow-based sign offs (9.6).

When Release Management believes the package is ready to be implemented, the PR suffix Release note
will be passed to Software Configuration Management (SCM). SCM will then place this package onto the
EPM server, based on receiving authority from Release Management, in the Release Note.

The final move into production is then made by the relevant deployment team, depending on the platform
the change is being made to using the TPM tool via the EPM Linux server (9.5). The authority and ability
to move the change into production is given to the deployment team when Release Management assigns
the MSC and the release note ticket to the deployment team.

Once the deployment is complete the PEAK ticket will be closed by the Change Owner who opened it.

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4.8.10.15 Post Implementation

4.8.10.15.1 Monitoring and Review
Fujitsu Project Managers monitor and control projects throughout their lifecycle through the following:

Weekly Releases report to Post Office Project Managers

A collated reporting pack issued to the Post Office Project Managers showing the RAG (Red, Amber, and
Green) status, Executive summary, key milestones, dependencies risks and issues for each of the
Releases that are currently in Delivery.

Monthly Joint Programme Board (with Post Office)

Presentation of a collated reporting pack to the Post Office Programme Manager and the Fujitsu
Programme Director showing the RAG status, Executive summary, key milestones, dependencies risks
and issues for each of the Releases that are currently in Delivery.

Monthly Demand Planning Forum (with Post Office)

A monthly meeting held with Post Office to look at the forward expected work load from Post Office against
the committed resources currently allocated to the Account to see if demand equals resource supply or if
any whitespace (not enough work for the committed resources).

Internal Fortnightly Releases Board

Presentation of a collated reporting pack to the Fujitsu Programme Manager showing the RAG status,
Executive summary, key milestones, dependencies risks and issues for each of the Releases that are
currently in Delivery.

Internal Monthly Programme Board

Presentation of a collated reporting pack to the senior Fujitsu Post Office Management and Fujitsu
capability units showing the RAG status and Executive summary, plus any matters relevant at that time,
for each of the Releases that are currently in Delivery.

4.8.10.16 Network Change Management

All Network changes are considered in accordance with established Fujitsu operational practices. All
changes require an approved design, all changes must be impact assessed by all business and technical
stakeholders, an implementation plan is provided, and a change window is agreed and acted on. The
system used by Fujitsu for change managementis the MSC system. Full details of the change management
are in the section above.

All documents concerning the architecture, design, service delivery, monitoring and review of POL
networks are stored in the appropriate Fujitsu’s document repositories Dimensions or SharePoint.

4.8.10.17 Exceptions to Fujitsu Change Management Process

The exception to this process is Reference Data which is supplied by POL for onwards transmission to the
POL Branch Counter estate via the Fujitsu network and is subject to a POL authorisation/ POA to release
and having followed the POL / POA reference data testing process.

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4.8.11 Security

10. Control Objective 10: Controls provide reasonable assurance that access to system resources,
including computing platforms and operating systems, is restricted to properly authorised
individuals.

# Control

10.1 Client Security Policies: Security requirements for infrastructure and software are designed,
documented and agreed by both POL and Fujitsu.

10.2 Baseline Operating System Standards: Platforms in operational use have defined baseline
standards that document their set up and configurations, as agreed by Post Office Limited.

10.3 Baseline Operating System Standards Implementation: Platforms in operational use are
set up and configured in line with documented and agreed baseline standards. Variances from
the baseline standard are fully documented and appropriately approved.

10.4 User (Fujitsu) Set-up and Amendment: Fujitsu users requiring new or modified access to
Post Office Limited systems are set up appropriately after approval by an appropriate Fujitsu
line manager.

10.5 User (Fujitsu) Deletion: Access to Post Office Limited systems for Fujitsu users is removed in
a timely manner.

10.6 Periodic User Reviews: Fujitsu and POL review user access to systems on a quarterly basis
to determine the appropriateness of access, and changes performed as deemed necessary.

10.7 Two-Factor Authentication: Access to POL systems is controlled using two-factor
authentication.

4.8.11.1 Policies and Procedures

Fujitsu employees adhere to the over-arching Security Policy Manual (CMP20-01) which is 1S027001
compliant. This policy manual outlines the responsibility for the identification of risks to information security
arising through the activities it undertakes and the services it provides, and for the implementation and
operation of appropriate countermeasures to manage those risks down to an acceptable level and in line
with best practice. The policy addresses security based upon an understanding of the organisation's
security objectives, an analysis of security risks and a suite of properly aligned and managed controls in
the areas of:

e Organising security.

« Human resources.

e Asset management.

« Logical access control.

e Cryptography.

e Physical and environmental security.
e Secure operations, Communications management.
« Information systems acquisition.

e Development and maintenance.

e Supplier relationships.

e Security incident management.

« Business continuity management and Compliance.

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The Community Information Security Policy (CISP) provides governance and direction in information
security for those responsible for initiating, implementing or maintaining security for POL infrastructure. The
document describes end-to-end security management process and physical and technical requirements for
the in scope systems. This document is authored by POL and shared with relevant third parties. Fujitsu is
required, where appropriate, to adhere to the requirements outlined within the document.

The SVM/SEC/POL/0003 document is Fujitsu’s interpretation of the CISP document. This policy complies
with POL’s CISP, the Fujitsu Manage Information Security Policy and the Fujitsu Security Master Policy.
SVM/SEC/POL/0003 is reviewed annually and/or by request of POL as a result of a major change.
Immediate issues will be dealt with through addendums. The policy is reviewed against POL’s CISP,
regulatory standards and methodologies (10.1). This document will be phased out in 2018 and will be
aligned to the EMEIA Security Policy/manual.

The ARC/SEC/ARC/0003 document provides a technical standard to the architects and designers to assist
them in implementing and maintaining the solutions they provide to POL. The ARC/SEC/ARC0003 is
reviewed in line with the above SVM/SEC/POL/003; changes in the latter would result in changes required
in the former.

4.8.11.2 General System Security Settings

Each Operating System and Database in use by Fujitsu to support both POLSAP, HNG-X and Credence
(e.g., Windows, Red Hat Linux, Solaris, Oracle), has its own High Level Design (HLD) documentation in
place. This sets out the required settings and configuration specific to that Operating System (OS) or
Database (DB) at a high ‘requirementdriven’ level (10.2).

A corresponding Low Level Design (LLD) document details the OS or DB specific configuration settings
needed to meet the requirements set out within the HLD document. These configuration settings are fully
documented at a granular level, for example including extracts of OS/DB configuration code and
initialisation files (10.3).

Both the Operating System/Database HLD and LLD are subject to mandatory review and must be approved
by relevant approval authorities documented within Dimensions. All new device builds must conform to
specifications set out within the HLD and LLD. Deviations again must be reviewed, risk assessed and
approved by POL prior to configurations being implemented or updated.

New devices must be set up in line with the HLD for the required OS/DB. If an HLD does not exist (for
example if a new server type is being implemented), an HLD document must first be created, reviewed and
approved by the individuals defined in the Reviewers and Approvers Role Matrix. This document is owned
and managed by the Fujitsu Document Manager. This document is reviewed upon changes to include key
members of staff, i.e., major document owners, as well as on an annual basis.

4.8.11.3 Platform Physical Design (PPD) Document

Each infrastructure element is initially set up from an agreed baseline configuration. Elements of the
infrastructure (for example servers) are grouped by type — based on the role they perform within the IT
environment- this is defined within Platform Hardware Instance List which is managed and maintained by
Infrastructure Lead on the Post Office Account. An example of this is ‘ACD’, a server type for servers
providing active directory services for support staff. Each server type has its own technical requirement,
and a PPD documentis created by the Solution Architects detailing these requirements. The PPD sets out
exact hardware specifications, software requirements and configuration requirements for that particular
device type.

In short, the PPD sets out the exact requirements that a server must cater to, prior to it being set up. Before
a server is set up, the PPD must be reviewed and approved by the individuals defined in the Reviewers
and Approvers Role Matrix.

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There is entry for each server instance within Platform Hardware Instance List stored within Dimensions
and this also includes a link to the PPD that was used to initially set up that server. Note that this is a historic
document, and remains a record of the initial server configuration rather than necessarily reflecting its
current state.

4.8.11.4 Technical Interface Specification Document

As part of a project where a POL third party is involved, both POL and the third party agree a technical
interface specification that defines the connectivity between the third party and Fujitsu managed
infrastructure. This document is stored within Dimensions, once formally agreed by Fujitsu, POL and
relevant third parties. This is a historical document that is updated upon changes in requirements of the
discussed interface. Changes will have to be agreed by Fujitsu, POL and relevant third parties.

4.8.11.5 Baseline Implementation

A combination of the aforementioned documents dictates the initial configuration of a server added to the
Fujitsu POL account estate which is determined by the solution architects. It is then the responsibility of the
network architects to register application software and products to the identified hardware. A baseline is
then sourced and configured using the aforementioned documentation. This configuration is uploaded into
Dimensions. This step in turns creates a Package Virtual Baseline (PVB) for the platform. The discussed
platform is then set for “Ready for Build” within Dimensions.

The task is then handed over to the Integration Team. It is the responsibility of this team to convert the
discussed PVB into a Deployment Package Virtual Baseline (DPVB). This includes a number of packaging
exercises, as well as rigorous unit testing. Once a DPVB is established, server definitions are outlined by
the Integration team — essentially deciding which DVPB is applied to the differing technologies within the
platform.

In order to deliver the DPVB into the Fujitsu managed POL estate, the DPVB is handed to Release
Management who are responsible for ensuring the outlined configuration is applied to the appropriate
technologies. They will formulate the release note(s) for application of the DPVB to both the test and
production environments - the team manages the overall release process from receipt of request for
delivery of PSPID/DPVB to authorising deployment for all test rigs and live. The Release Management
team act as an escalation point area for the Test team for issues falling within the Release Mechanism.

Once the relevant MSCs have been raised to issue the platform, the release note will be delivered to the
relevant Core Service Delivery Unit (Core SDU) — in this case either the Windows NT or UNIX teams. It is
the responsibility of the Core SDU to action the release note. They will apply the DPVB to the appropriate
technologies, initially to a test rig which will be handed over to the test team.

The test team will accept rig handover from Core SDU and begin their testing procedures — comprising of
a composition of High Level Test Plans which will act as the base for any Error Logging and Test Reports
that are produced once testing is complete. The final sign off from the test team results in liaising with
Release Managementand the Core SDU to agree deployment of fixes, top-ups or to schedule a rig rebuild.
They will also liaise with Service Delivery Teams and POL to agree deferments, if applicable.

Once testing sign off is received, the release note will then be passed back to the Core SDU will deliver the
baseline via TPM to the relevant technologies.

4.8.11.6 Changes of Configuration to Existing Infrastructure

Once a device is set up, configured, and added to the Fujitsu infrastructure following the process detailed
above, its configuration remains static until the need for a configuration change is identified. The server
configuration is not updated by default when (for example) the relating OS HLD or LLD documents are
modified. Configuration changes made to in-service devices must follow change / incident management
processes described elsewhere in this report (include obtaining approval from POL).

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The exception to this rule is for the application of standard OS/DB patches and security fixes, which Fujitsu
are (in many cases) contractually obliged to apply. Such patches do not bypass approval, as they are
reviewed by a Patch Approval Board (PAB) (attended by POL) prior to their application.

Changes to in-service infrastructure configurations can be identified in a number of ways, for example:

Change Projects.

New Application Development.

Patch Application.

Infrastructure Refresh.

Fixes identified through the Incident Management process.

Note that these changes follow the formal change and incident management processes described in this

report.

4.8.11.7 Password Settings

Password configuration requirements are defined in the relevant baselines for infrastructure components.
If a component cannot implementthe relevant baseline, the exception is notified to POL who must authorise
it. Passwords are stored in a one-way encrypted form and are protected against substitution or dictionary

attack.

Passwords shall conform to the following criteria (unless POL has approved a deviation from these criteria):

.

Where passwords are used for authentication, the user must be forced to change the initial
password before any other access to the system is permitted.

Passwords must expire in 30 days.

Re-use of the same password must not be permitted for either a specified time or until at least
4 other passwords have been used.

Passwords must be a minimum of 7 characters long and must be alphanumeric (i.e., a mix of
letters and numbers). There must not be more than two consecutive identical characters. The
password must not be the same as the username.

After 3 consecutive unsuccessful attempts to log-on, the user must be locked out for at least
30 minutes or until, reset by an administrator.

In general, system users must be subject to the controls specified above. The following

exceptions are permitted:

o The username and password used to automate application login may be held in ‘clear’i.e.,
readable format or unencrypted, if it is only accessible to authorised operational
managementstaff for that system and the potential damage from misuse of that username
is minimised.

o The password may expire less frequently than the 30 days for human users where suitably
obscure passwords are used, e.g., strong passwords consisting of upper case, lower case
characters, numbers and symbols and the risk of external access to such accounts is very
low however this concession must be documented and approved by the POL CISO.

4.8.11.8 User Administration

The principle of ‘least privilege” is used to restrict the access rights of users whether human or non-human.
The User Access Process details how access is gained to both physical and technical assets within the PO
Account and Fujitsu supporting functions and is managed by a POA Security Operations Team (SOT).

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4.8.11.9 New Joiners/Transfers

Detailed below are the steps that must be followed for an individual who is new to Fujitsu Services and
joining the POA which are shown in the Figure 11 below. Users who have transferred internally onto the
Post Office Account from another part of the Fujitsu business will follow a similar process, illustrated in
Figure 12 (10.4).

Post Office New Joiners

‘Standare HR
process
% completed
HR and Une
Managernetited
Actionte be agreed
Intate Securty
Clearance for ‘Complete form
new jane via proviaingALL relevant
Catevie fnformationand return
RequestSystem lO CSPOA forprogress.
‘Access foms fom

SPOR Secunty
Operations eam

_

Figure 11. User System Access Process Flow for New Joiners

Moving, Transfer, Amending Access.

oo 8 ere
‘Aetionte be agreed

‘ata Seu
lance Cones fom
2 corned povegAl vera
‘Soon i en
g Reaver yen fecsPoxtrpoaens
2 CSPOn See

=

ROA

Figure 12. User System Access Process Flow for Movers, Transfers and Access Amendments

The Line Manager contacts POA Security Operational Team (SOT) and requests that system access forms
are provided. The POA SOT provides the New User Access Forms to the Line Manager and requests they
are completed and returned to the POA SOT both as a soft and hard copy. These forms are filed and stored
in the security operations secure room and kept for audit purposes.

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POA SOT check the form is completed correctly, and in line with PO Account Security Policy. POA SOT
then notifies the relevant system owners (Windows NT Team, Unix Team, POLSAP Team) via an e-mail
containing the completed request form and a TFS call is raised whilst access is granted.

Once System Owners configure the user they will update the TFS call on completion of this configuration.
POA SOT shall then close the TFS call and update the register.

4.8.11.10 Leavers

The steps that are followed for an individual leaving Fujitsu Services and the PO Account are shown in the
figure below of the user system access flow for Leavers (10.5).

The Line Manager contacts POA SOT by voice prompt and e-mail, providing the leaver’s details and
requesting a revocation form. The POA SOT provides the revocation form and asks that it is completed
and returned to the POA SOT both as a soft and hard copy. These forms are filed and stored in the security
operations secure room and kept for audit purposes.

POA SOT check the form is completed correctly, and in line with PO Account Security Policy. POA SOT
notify the relevant system owners (Windows NT Team, Unix Team, POLSAP Team) via an e-mail
containing the completed removal form and a TFS call is raised and suspended whilst access is removed.

Once System Owners remove the user they will update the TFS call on completion of this configuration.
POA SOT shall then close the TFS call and update the register.

Post Office Leavers Process — Leavers with immediate effect — Follow red steps

IGeneral Leavers Process

RevocatiorForm ee:
Toneren oe
z pes
= i

(ESROA

HR

Figure 13. User System Access Process Flow for Leavers

4.8.11.11 Information Security Management Forum

The Information Security Management Forum (ISMF) or also known as M6 is a formalised quarterly forum
where Post Office and Fujitsu Security operations and governance/issues are raised and progressed with
the necessary stakeholders. The purpose of the meeting is to:

«To help ensure the early identification of issues together with timely & effective resolution by
those attendees with functional responsibility.

e Review Security Operations monthly reporting on common security control objectives e.g.,
Patch & Vulnerability Management; Anti-virus/Malware; Configuration Management of Security
Infrastructure etc. as agreed between Fujitsu and Post Office.

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The Security Operations quarterly and/or monthly reporting pack will be compiled and circulated one week
in advance of the forum by Fujitsu. This pack will include:

e Agenda for current forum.

e Minutes from previous forum and progress against previous actions.

e Open or new Security Risks and Issues.

e Changes to Information Security Architecture relating to joint venture products.
« Upcoming developments.

e Security Reports

e Supplier Compliance Status

e Privileged Accounts Review (10.6).

4.8.11.12 User Authentication Technologies

User authentication is two-factor, including dynamic password authentication against an external database.
Further defence is ensured through the Network Team requiring system access via TACAS+ authentication
(10.7). Once authenticated, remote access connections are established via a VPN using an encrypted
session. Authorised users should not provide their login token (iKey token) or associated information to
anyone at any time for any reason, other than to surrender it when no longer required or when their
relationship with Fujitsu has ceased as an employee.

The exception to this would be if they needed to have their account or token reset or a temporary passcode
allocated. If this was the case then this information could be given to an authorised person (i.e., member
of the Security Operations team) to validate the user.

iKey access is granted to those users who support the HNG-X platform/application and Credence platform.
Users must connect to SSN Terminal Servers in order to access to HNG-X and Credence platforms within
the data centre. As such, all HNG-X and Credence SSN Servers must be a member of the Windows AD
(MSAD Domain). Remote users must be granted the Allow log on through Terminal Services right, or be a
member of Remote Desktop Users group.

4.8.12 Access to databases, data files and programs

11. Control Objective 11: Controls provide reasonable assurance that access to databases, data
files and programs is restricted to properly authorised individuals.

# Control

11.1 Patch Management: In-scope platforms are maintained with vendor released security updates
and patches in line with agreed procedures and timescales.

11.2 System Administrators: Access to perform system administrator functions is restricted to
appropriate Fujitsu personnel.

11.3 Database Admii
Fujitsu personnel.

istrators: Access to administer POL databases is restricted to appropriate

11.4 Administration Tools and System Utilities: Access to administration tools and system
utilities on Post Office Limited infrastructure is restricted to appropriate Fujitsu personnel.

11.5 Unauthorised changes are monitored: The TripWire system is configured to monitor and
alert on changes made to in-scope applications and underlying data within the HNG-X estate.

11.6 Access to Data Files/Programs: Access is restricted to production program and data files
through the use of user groups to restrict and allow access.

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4.8.12.1 Patch management

Fujitsu's POA SOT and the Service Delivery teams (SDT) subscribe to relevant vendor information feeds
to receive details of patches from vendors that provide critical operating systems, applications, databases
and network equipment to POL.

Details of patches are reviewed and documented in the Patch Deployment Spreadsheet. This spreadsheet
is stored within SharePoint.

The Deployment Spreadsheet is reviewed by the SDTs and Application Support teams on a regular basis;
they assess whether the patch applies to equipment they manage. They will then update the spreadsheet
with the reasoning behind their decision to apply, or not apply a patch in readiness for submission to the
Path Approval Board (PAB (11.1)).

The PAB consists of members of the Infrastructure Services division, Applications Solutions Team,
Operational Security Team and a POL Security representative. The PAB is held on a monthly basis. The
PAB will review the Patch Deployment Spreadsheet and seek agreement on the patch set to be deployed
and in what timescale (e.g., deploys patches as an emergency fix or include at next release).

4.8.12.2 System Administrators & Database Administrators

System or Database Administrator user management controls are only implemented once Corporate
Fujitsu approval has been granted for access to various sites and systems. The user management
database utilised by the POA SOT holds details of all the support teams and the system access the team
resources have (11.2 and 11.3). This document is monitored on a regular basis to provide assurances
against contractual requirements and obligations against the Unit's Roles Responsibilities and Access
Requirements.

Access and resources in the teams are reviewed and confirmed as appropriate on a monthly basis by the
line managers (11.4 and 11.6). The POA SOT then completes the monthly access report for privileged
users and presents at the monthly ISMF with POL.

Throughout the POL infrastructure the same authoritative source of authentication and authorisation data
is used to manage access control for all operational support users. The purpose of this approach is to:

1) Reduce the number of passwords required for support purposes.

2) Help ensure better audit and logging facilities for authentication and authorisation.

3) Streamline the process for adding, changing and removing authentication and authorisation
information.

4) Provide a standard method of authentication and authorisation throughout the estate.
Database access control also requires individual role-based accounts for each class of user, both for
controlling the actions a user can perform and for helping to ensure administrative and other actions are
traceable to an individual to provide a valid and informative audit trail.
The main classes of database users will be:

1) Application - Accounts used by applications for database access to either Oracle or SQL Server
Databases.

2) System Administrators - Operational support users with responsibility for managing the database
systems.

3) Database Administrators — Operational support users with responsibility for specific databases.

4) Non-administrative Database support users - Operational support users with responsibility for
specific databases.

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4.8.12.3 Unauthorised changes are monitored & reviewed

Tripwire compares files and directories against a baseline database of file locations, dates modified, and
other data. It generates the baseline by taking a snapshot of specified files and directories in a known
secure state. After creating the baseline database, Tripwire compares the current system to the baseline
and reports modifications, additions or deletions (11.5). Tripwire ensures the integrity of critical system files
POA SOT who monitor the console.

On a monthly basis, the POA SOT reviews alerts that have been raised from Tripwire. Monthly reports are
produced detailing alert statuses and a root cause analysis for each alert. The reviews are available for
POL management, in order to monitor unauthorised attempts to modify datasets. The Tripwire alert report
is included in the Security Operational Reports. In cases where no alerts are raised within the month, a
report may not be produced and this will be noted within the next month’s report. It is important to note that
Tripwire does not cover the SAP environment as SAP application data cannot be modified at an
infrastructure level for this solution.

4.8.13 External threats and access violation management

12. Control Objective 12: Controls provide reasonable assurance that networks and system
resources are protected from external threats and access violations are detected, reported and

investigated.
# Control
64 Major & Security Incident review: Once a Major or Security Incident is resolved a formal

closure and review is performed including, if applicable a Root Cause Analysis.

12.1 Firewall Configuration Access: Access to set-up and configure firewalls is restricted to
appropriate users from the Networks team.

12.2 Configuration Changes: Changes to firewall configuration follow the standard Fujitsu MSC
process including authorisation, testing (where deemed appropriate) and approval of changes
before they are implemented.

12.3 Anti-virus software: Anti-virus software is installed on critical Windows and Red Hat Linux
network platforms as agreed with POL. Installed anti-virus software is up to date in line with
agreed contractual requirements.

12.4 Intrusion Detection System (IDS): IDS is installed on critical network segments as per POL
contractual requirements to detect threats and alert the networks team.

4.8.13.1 Overall network security design

Within each Data Centre, the POL network is segmented following the Security Domain model. The
Security Domain model provides a framework for the network architecture and designs, such that the flow
of data around the network is controlled following the principle of least privilege. The applied segmentation
is furthered developed within the Network Architecture document and Network High Level and Low Level
Design documents — stating the specific details that have been configured on the network.

The purpose of network segmentation is to reduce the possibility of a potential attack. By restricting the
‘attack surface’ to a limited number of systems, damage caused as a consequence of the attack, can be
kept to a minimum.

The network segmentation is achieved using a combination of physical and virtual controls. Dependent on
the Security Domain and specific contractual agreements with third parties, the network segmentation is
enforced using VLANs, IP's and Stateful Inspection Firewalls, ACLs, AES Encryption and physical
separation.

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Network segmentation will also be used to provide separate environments. Each test environment will be
separated from other test environments, as well as from the live environment. This will be enforced through
the use of Firewall and Router access control lists, VLAN restrictions and user and network access control.
These controls will be monitored using the event managementsystem to verify that access control lists and
configuration settings are not changed in a way that may allow a network path from one environment to
another, except under strictly controlled conditions.

4.8.13.2 Firewalls

Direct access between the internet and systems or system components in areas of the network that have
been classified as “sensitive” is prohibited and all traffic is routed through a DMZ - a logical sub network
that contains and exposes Fujitsu’s external-facing services to the internet. Firewalls are configured to
perform stateful inspection in that, only established connections are permitted to connect to the network.

Perimeter firewalls and router components are configured to mask internal addresses to the internet using
NAT technologies.

Access to set-up and configure firewalls is restricted to appropriate Fujitsu network personnel (12.1). MSC
process is followed to raise rule set changes to firewall configurations (12.2). Upon operational change
process invocation, an appropriate deployment plan is uploaded to the file store within the MSC system
which is subjected to peer review prior to deployment, this plan is also used to facilitate change regression,
if appropriate.

Should any protocols that have been deemed as insecure be required to be included in the configuration
then additional information must be supplied that details the security features that have been implemented.

4.8.13.3 Rule Set Review Process

In order to verify the current configuration of network security enforcement devices that manage the POL
estate, all configurations are manually inspected at least every 6 months.

Authorised firewall configuration elements in relation to network security enforcement are documented in
the document SVM/SEC/STD/1985 which is stored securely in Dimensions. This document is compared
against the appropriate device’s active configuration and helps to ensure these are in line with the
recommended standards in the document. SVM/SEC/STD/1985 is updated when operational
configurations are changed through the completion of MSCs. As such, SVM/SEC/STD/1985 reflects the
secure elements of appropriate operational devices at all times.

If discrepancies are found between the recommended configuration within SVM/SEC/STD/1985 and the
operational configuration, they are then investigated to determine whether the environment has been
compromised or not and also ascertain why the correct process was not followed.

The SVM/SEC/STD/1985 documentis updated every 6 months to keep it up to date.

4.8.13.4 Anti-Virus Software

The ESET Anti-virus product is a real-time protection tool and performs automatic, scheduled and manual
scans on all managed platforms, in order to identify, contain and eliminate the spread of malicious code
(12.3).

For the in-scope Wintel systems, real-time file system protection is implemented. All files are scanned for
malicious code at the moment they are opened, created or run on any computer.

For the in-scope Linux systems, an on demand daemon has been created using the ESET SDK that can
scan files as they are transferred through the respective platforms. ESET is not installed on UNIX (Solaris)
systems, by agreement with POL.

In cases where a specific vulnerability or virus stream constitutes a high risk threat to the systems, a
scheduled scan is set up from the management console and the client configuration updated accordingly.

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ESET provides regular updates of both, signatures and engines. For engine updates, these are distributed
to clients using the existing Tivoli software distribution management system after having been verified and
tested in the test environment to help ensure that no system functionality is compromised by the updates.

The ESET AV Systemis based on a central Management Server (ERAS) where all the updates (signatures)
are stored and managed. ERAS receives the updates from ESET, via an Internet connection, and makes
them available for clients to install.

Whenever a virus, vulnerability or suspicious event is detected, the ESET Antivirus system will react
according to a configuration that will be enabled using ESET antivirus policies. The workflow describing the
process followed is as follows:

1. Windows
a. Onaccess (read, copy, execute, etc.) every item will be scanned by the AV system.

2. Linux
a. OnDemand scanning is performed by the ESET Scanner Daemon.

3. If a threat is identified, the AV system will try to automatically clean the item. If the cleaning is
successful, an alert event is logged in the ESET Notification manager - which has the ability to take
actions when configurable alerts are identified within the ESET environment. This functionality
provides an integration point between ESET and the Tivoli Netcool event system. The ESET
Notification Manager is monitored proactively by the POA SOT.

4. If the cleaning is not successful, an alert event is logged and an incident is raised in TBSM, with
alerts going through to SMC start a remediation action (refer to Control Objective 6 above for further
information around the incident process):

a. If developmentis needed to solve the issue, a PEAK is raised.

b. A fix is produced and assessed according to normal procedure:
i. If the fix is rejected, a risk is raised on the Risk register.
ii. If the fix is approved, the fix is deployed on Test and Live environment.

The following is a diagram of the workflow to be applied. Tivoli and KELS are integrated with ESET in order
to automate the alerting process in the event of a High/Critical virus being identified by ESET, and start the
appropriate remediation activities.

Possible raise
PEAK if
development
is required

4 \

Z \.
4 \

Aerio ‘

—Q Tivoli
8 na Ea en Asie” [—Deplovimy GRY
= via TFS

and
raise
Incident

Reject fix

Raise Risk on
Risk Register

Figure 14. AV Scanning Process

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4.8.13.5 Intrusion Detection System (IDS)

Network-based intrusion detection is deployed as part of the HNG-X Data Centre and POLSAP and
Credence infrastructure. This provides notification of an attempted compromise of systems within the Data
Centre, through malicious activity or malicious code.

The traffic paths to be monitored were identified by risk assessment during the IDS design phase and are
documented in the IDS Appliance Low Level Design (LLD) document (SVM/SDM/OLA/0030). As part of the
system design process for new services, additional paths may be included in the monitoring with updates
to the IDS Appliance LLD as required.

The appliances allow the monitoring of multiple physical network segments from a single appliance. The
appliances are designed to prevent traffic flowing between sensor ports, i.e. it is not possible for the
appliance to act as a Router and connect networks, thereby bypassing other security controls.

In addition to raising alerts of malicious activity, the IDS sensors send event logs into the secure event
management service, to provide an audit trail and to enable additional event correlation with Firewall,
Router and other network device logs.

To reduce processing overhead on core HNG-X systems, Host Based IDS (HIDS), is not deployed. The
inherent security of the platform foundation builds, the hardening process, the implementation of file and
process auditing, the network security controls and the implementation of anti-virus on Windows platforms
significantly reduce the need for HIDS. This decision came from POL, since POL felt that IDS could affect
business transactions at critical business times.

Traffic types that are not inspected by the IDS are:
e SSH traffic originating from the SAS servers to the Counters.
e SSH traffic originating from the SAS servers to the Campus (Data Centre), servers.
e SSH traffic originating from the network management group connecting to the Branch Router.

Any use of other support tools such as Session control protocol (SCP) or SSH File Transfer Protocol (SFTP)
are also logged to ensure an audit trail is available in the event of an incident.

For the purposes of IDS coverage, it is assumed that this is acceptable to Post Office Information Security,
as the encrypted traffic is tightly access-controlled and is only permitted between specific end-points.
Access control is enforced at both the platform level and the network level through the use of strong
authentication and restrictive firewall rules.

The Horizon-Online Tivoli Event Management system ensures that any false positives and false negatives
are reduced to a minimum. The Incident Management Policy and Security Incident Management Policy
documents are updated accordingly. Additionally, intrusion attempts are detected through the use of the
Tivoli event management system and specifically, alerts raised as a result of failed attempts to logon or to
access data with invalid permissions.

Distributed denial of service (DDOS) attacks are considered to be a low risk for the Horizon-Onlinesystem
as it operates as a closed network system and therefore the possibilities of attack from Internet (the most
significant threat source), although present, are very low. However, to ensure that such attacks do not
originate from within the Horizon-Online infrastructure or through connections to and from third-parties, all
edge routers and firewalls are implemented with denial-of-service protection. In addition, the segmentation
of the Horizon-Online WAN and Data Centre LAN ensures that a successful denial of service attack is
extremely difficult to perform.

Daily high alerts and attack type reports are produced by the IDS for POA Security Operations team’s
review and reference.

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4.8.14 Remote Access

13. Control Objective 13: Controls exist to provide reasonable assurance that remote access is
appropriately restricted to authorised personnel.

# Control

10.4 User (Fujitsu) Set-up and Amendment: Fujitsu users requiring new or modified access to
POL systems are set up appropriately after approval by an appropriate Fujitsu line manager

10.7 Two-Factor Authentication: Access to POL systems for Fujitsu users is controlled using two-
factor authentication.

13.1 Remote Access Authorisation: The use of Radius Authentication and CHAP (Challenge
Handshake Authentication Protocol) for Counters accessing the data centre, ensures that
access is restricted to approved devices.

As mentioned in the Control Objective 10 process above, remote access for individual users is managed
through iKey tokens.

CHAP is used to authenticate the Post Office counters at the outlets when they connect to the data centre.
Each counter is authenticated using a dedicated RADIUS server instance for network device access, with
different CHAP credentials per Branch Router (13.1).

Counters and external devices accessing the data centre can only do so via an authorised connection
utilising the CHAP Protocol. CHAP requires that both connecting parties (the data centre server and the
counter) know the plaintext of a secret string of text (the CHAP secret). During the ‘handshaking’ phase,
(which must take place prior to any other data being communicated), the data centre ‘challenges’ the
counter with a unique calculated value, and expects a particular response by virtue of a one-way hash
algorithm.

This expected response must be generated by the counter using both the CHAP secret, and the data centre
server challenge value, which ensures that:

« The counter is the same device that sent the initial connection request.

« The counter is an authorised device, as only authorised devices have knowledge of the CHAP
secret.

The CHAP secretis:
e Never shared across the network as part of the handshaking process.
e Securely stored, always in obfuscated or encrypted form.
e 11 characters long and complex.
« Changed at least every two years.

If the counter returns an unexpected value, the connection is immediately terminated. For added security,
the handshaking process is repeated at set time intervals, requiring the counter to re-authenticate with the
data centre regularly. The CHAP secret is not known by or accessible to users, as it is automatically and
randomly generated offline, and encrypted prior to being supplied to specific servers that act as ‘distributors’
of the secret.

RADIUS (remote authentication dial in user service) provides an additional layer of security, through a
centralised Authentication, Authorisation, and Accounting management system. A RADIUS server within
the network keeps track of devices approved to connect to the data centre, along with their credentials.
These are stored in a secure embedded database. Connection attempt credentials are compared to the
RADIUS server, which allows or denies access to the data centre based on whether the connecting device
is listed as approved within the database.

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5. Third Party Considerations

We have detailed in the table below the third party considerations whereby additional contractors and
sub-contractors (acting as agents of POL) are responsible in part for management of particular ISAE

3402 controls.

ISAE 3402 Control

Third Party

Relationship to Fujitsu and/or POL

3.4 Failed Backups are
Tracked and Monitored

Failed backups are logged
as events in the Tivoli Works
Scheduler tool for SMC
review and resolution.

4.2 Failed Job Schedules
are Monitored

Automated alerts are
configured and sent to
relevant teams upon the
occurrence of a batch job
failure. These are
investigated in line with the
incident management
process.

Accenture

Accenture acts on behalf of POL and
monitors and manages the database
backups, including jobs, for Credence and
POLSAP.

5.3. HNG-X Monitoring of
Service Delivery

A monthly Service Review
analysis is provided to POL to
review details of capacity,
availability and incident
management _ performance
against the agreed service
level targets (SLTs).

ATOS

ATOS are engaged in the monthly Service
Review meetings between Fujitsu and
POL to assist in the management of key
business services; Branch & Central
Network, Data Centre Operations,
Operational Business Change, service
management and, Service level targets
analysis for the supporting services to
POL. They are also responsible for
monitoring the service delivery for
Credence and POLSAP.

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ISAE 3402 Control Third Party Relationship to Fujitsu and/or POL

6.3 Incident Resolution Computacenter ATOS as the service integrator is involved

Incidents are resolved in a I ATOS Ieagen priority assignment te incivents

timely manner, as per the a, : “na

assigned priority. Accenture resolution is their responsibility.
As part of the Tower Model service
delivery model, Computacenter manages
the End User Computing Tower unit.
Fujitsu is not responsible for 1* level
support for these services but currently still
supports 2°73 and 4" level support
operations. Computacenterhosts the front
desk operations for POL’s branches and
head office users, and has taken
ownership for 1°‘ level support calls.
Accenture are responsible for managing
POLSAP and Credence and therefore are
involved in resolving any incidents through
Fujitsu's incident management
procedures.

6.5 Incident reporting ATOS ATOS is responsible for monitoring the

On a daily basis, the Fujitsu pally open incidents report Provided by

HSD/IMT reviews the number ujitsu as part of I their incident

- : management responsibilities.

and severity of outstanding

incidents in TFS.

8.1 Change management ATOS During the change request process,

approval is required for certain types that

Te MISC footset is used ‘° impact the POL estate and in some cases

joint eecision bothoen Fujitsu approval is also required from ATOS and

and POL as to which parts of other POL agents and third parties.

the tool are relevant for a

change.

8.2 Change approval I ATOS After a change has been developed,

(Operational) ATOS are often required to review and

All changes must be approve the change (including performing

authorised by the Fujitsu
Duty Manager or technical
bridge, with approval being
documented in the MSC
system. Changes that cause
major service interruption
must also be authorised by
the Change Advisory Board
(CAB), with the approval
documented in the meeting
minutes and within the MSC
system.

independent testing) prior to deployment
into production.

For changes that require CAB approval
(including major service interruptions),
ATOS actively participate in the CAB
process to review and approve changes
prior to deployment.

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ISAE 3402 Control

Third Party

Relationship to Fujitsu and/or POL

9.3 Design Proposal

Projects are outlined in a
Design Proposal (DPR) that
is stored in SharePoint and is
reviewed and approved by
POL and Fujitsu
management.

ATOS

As part of the design proposal process,
ATOS are responsible for participating in
the review process of change projects.
ATOS liaise with the impacted programme
teams, Change Managers and Changer
Owners as part of obtaining the Design
Authority Board (DAB) approval required
to progress change requests to the
Programme Change Control Board which
in turn is submitted to the Change Control
Board for change approval or rejection.

9.6 Approval to Implement
Changes

POL approval is required to
promote software changes to
the live environment.
Approval is captured within
the relevant MSC.

ATOS

ATOS act on behalf of POL as authorising
and approving agents for operation
business changes applied to POLSAP,
HNG-X and Credence which is
documented via the Manage Service
Change (MSC) process.

Depending on the nature of the change
request proposed (e.g. business service
impacting), the Fujitsu change sponsor is
required to seek ATOS approval as part of
the change review process to ensure that
the change had met the business
requirements prior to deployment into
production.

10.6 Periodic User Reviews

Fujitsu and POL review user
access to systems on a
quarterly basis to determine
the appropriateness of
access, and changes
performed as deemed
necessary.

ATOS

ATOS actively participate on the behalf of
POL in the quarterly ISMF M6 meetings
across a range of topics including; security
operations, governance and compliance,
privileged user access reviews, incident
analysis, risk register updates, cyber
assurance and business continuity around
security improvement plans.

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6. Complementary User Entity Controls

In designing its system, Fujitsu has contemplated that certain complementary controls would be
implemented by POL, or POL’s agents to achieve certain control objectives included in this report. There
may be additional control objectives and related controls that would be appropriate to the processing of
POL's transactions that are not identified in this report. POL should review its contract with Fujitsu to
reinforce its understanding of the scope of services provided by Fujitsu and hence the relevance of the
controls described and tested in this report.

This section describes other internal controls that should be in operation at POL (including PO third parties)
to complement the internal controls at Fujitsu. POL’s independent auditors should consider whether the
following internal controls are present and operating effectively.

* Organisation and Administration
Controls should be established to:

o Evaluate that the contracted processes and controls have been implemented.

o Evaluate and monitor Fujitsu’s delivery of services to ensure conformance with contractual
obligations.

o Designate their own internal client representative to ensure adequate maintenance of
controls over Fujitsu services.

o Implement and monitor proper segregation of duties exist at POL owned / managed
facilities.

« Physical Access
Controls should be established to:

o Appropriately restrict access to terminals, workstations, and other computing equipment at
POL sites, which can also allow access to infrastructure located in the Fujitsu data centre.

o Request and approve non Fujitsu employee access to computer rooms in a manner that
limits access to only those employees requiring it based on job function.

« Computer Operations
Controls should be established to:

o Approve additions, modifications or deletions to scheduled jobs (including backups) if
necessary.

o Inform Fujitsu of critical scheduled jobs and the appropriate escalation procedures for
those jobs.

o Data Retention requirements are documented and agreed with Fujitsu.

o Periodically, request restores from backup to validate that programs, files and data are
recoverable.

o Formally agree with all third parties access boundaries to POL’s IT infrastructure.

« Availability and Capacity Management

Controls should be established to:

o Define SLAs for availability, capacity and performance managementin the agreement with
Fujitsu.

o Review and take action on reports on availability, capacity and performance management,
supplied by Fujitsu, where required.

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¢ Networks
Controls should be established to:

o Review network performance statistics (e.g., response time, availability) periodically and
that the service levels received are in compliance with the service levels specified in their
contracts.

o Compare metrics in network availability and performance reports to user experience to
determine whether availability and performance statistics are accurate.

o Formally agree with all third parties access boundaries to POL’s IT infrastructure.

« Change Control
Controls should be established to:

o Ensure that application changes follow a formal change process and are approved.

o Ensure that requests for Fujitsu to implement changes to systems come from authorised
individuals.

o Ensure that a POL representative participates in, or has input to, the system development
activities that are relevant to POL, including participation in testing activities, if applicable.

o Ensure that POL individuals who are permitted to authorise firewall changes have an
understanding of the impact the change has and they carry out a risk assessment prior to
authorising a change.

o Ensure that client representative participates in, or has input to, the system development
activities that are relevant to Post Office, including participation in testing activities, if
applicable.

« Logical Access
Controls should be established to:

o Ensure and implement procedures and documentation for authorising user access to
terminals and application functions exist.

o Periodically, review access granted to users at the application layer, to confirm that such
access remains appropriate based on users’ job functions.

o Implement procedures to ensure additions, changes, and deletions in client organisations’
personnel and their associated job responsibilities are authorised and communicated to
Fujitsu in a timely manner (if applicable). Where it is the responsibility of POL to remove
users, POL should implement procedures to review that all leavers are removed in a timely
manner.

o Ensure where Fujitsu is asked to implement compensating controls to address situations
where infrastructure cannot be configured to meet agreed baselines (e.g. additional
monitoring controls), ensure they are comfortable that such controls are being operated
whether it be by Fujitsu or POL’s employees or contractors.

© To implement procedures to prohibit the use of shared user IDs or user IDs whose
passwords are not changed on a regular basis.

o Advise POL employees regularly of the importance of security and to report suspicious
personnel, transactions or activity to management.

o Implement procedures to review operating system configurations to ensure settings
provide adequate security, particularly where security parameters are maintained at the
original client settings when transferred to Fujitsu.

o Ensure that POL's information security requirements in relation to services provided by
Fujitsu are periodically reviewed, discussed with Fujitsu and any necessary changes then
made.

o Review and approve any standard operating system builds and agree on the timeframes
for them to be deployed to the POL estate. Ensure that the privileged accounts reviewed
in the quarterly meeting with Fujitsu are appropriate.

o Ensure that that Platform Hardware Instance list is reviewed periodically to confirm the
POL infrastructureis appropriate.

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« Incident Management
Controls should be established to:

o Report timely to Fujitsu and/or other vendors of any issues, incidents, or problems with
appropriate incident priority ratings that impact the processing of data through HNG-X,
POLSAP or Credence.

o Respond to Fujitsu requests for information in a timely manner and to confirm that issues,
incidents, or problems are resolved to their satisfaction.

o Ensure that POL has appropriate policies and procedures in place to track and monitor
major and security incidents to a timely resolution.

e¢ Applications Development
Controls should be established to:

o Document, review and sign off user requirements by the business, prior to commencing a
change.

o Ensure that requests for Fujitsu to implement changes to POL systems come from
authorised individuals.

o Ensure that where POL or its other suppliers administer POL infrastructure, the
application's developers have appropriate access.

« Designand Test
Controls should be established to:

o Ensure that agreements from authorised individuals are made with POL outlining
requirements captured in the design and test documents (with sign off) such as
Requirements Traceability Matrix (RTM), which are maintained throughout
development/test cycles.

o Agree with Fujitsu an approved, documented process to guide the testing (validation &
verification) of software, system and service solutions.

o Agree actions with Fujitsu regarding the resolution path for recorded deviations from
expected outcomes of tests via a bug fix management tool, and reported in a standard
format as defined in the EBMS process.

o Ensure that whenever the customer is performing testing, testing is conducted by
appropriately trained and skilled resources (using industry approved testing standard
qualification boards).

o Confirm with Fujitsu that testing is risk based, which will ensure the testing extent is
appropriate.

« Business Change

Controls should be established to:

o Ensure that POL agrees commercial terms definition, costs, resources and requirements
of projects prior to initiation of project development.

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e Legal obligations
Controls should be established to:

o Ensure that POL agrees and defines the legal and regulatory standards that Fujitsu is
required to meet. Legal and regulatory standard agreements should be formally agreed,
documented and signed at executive level.

« Project Management
Controls should be established to:

o Document, review and approve the lifecycle of new projects, from gathering requirements,
through to design, development and deployment into operational running.

o Agree with POL accepted methods for identifying and rectifying problems and issues early
in the project lifecycle, and so reduce the need for costly rework and fixes.

co Ensure that during the initiation phase of the Project Lifecycle, document, review and sign
off customer change requests prior to development work.

o Review results of test-specific requirements and provide approval sign off at end of testing
process.

o Formally communicate that upon successful testing review, changes developed have
satisfied business objectives in the Release Acceptance Board/Requirements Acceptance
Board.

The list of client control considerations presented above is not a comprehensive list of all internal controls
that should be applied by POL. Other internal controls may be needed at POL.

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7. Description of Control Objectives, Controls,
Tests and Results of Tests

7.1. Testing Performed and Results of Tests of Entity-Level
Control

In planning the nature, timing and extent of our testing of the controls specified by Fujitsu, we considered
the aspects of Fujitsu’s control environment, risk assessment processes, information and communication
and management monitoring procedures and performed such procedures as we considered necessary in
the circumstances.

7.2 Control Objectives, Control Acti
Procedures and Results of Testing

On the pages that follow, the description of control objectives and the controls to achieve the objectives
have been specified by, and are the responsibility of, Fujitsu. The description of the testing performed by
EY and the results of tests are the responsibility of the service auditor.

ities, Testing

The service auditor's examination was limited to the IT general controls relevant to Fujitsu's operations
supporting IT services provided to POL to support the POLSAP, HNG-X and Credence applications.
Accordingly, the service auditor expresses no opinion on the operating effectiveness of any aspects of
application processing and application controls, individually or in the aggregate. POL may need to gain
information about application processing and application controls through other means.

Remote Access Procedures for Assessing Completeness and Accuracy of
Information Produced by the Entity (IPE)

For tests of controls requiring the use of Information Produced by the Entity (IPE), procedures were
performed to assess the reliability of the information, including completeness and accuracy of the data or
reports, to determine whether the information can be relied upon in the examination procedures. This
includes IPE produced by Fujitsu and provided to POL (if relevant and defined as part of the output control
objectives), IPE used by Fujitsu management in performance of controls (i.e., periodic review of user
listings), and IPE used in the performance of our examination procedures.

Based on the nature of the IPE, a combination of the following procedures were performed to address the
completeness and accuracy of the data or reports used: (1) inspect source documentation relating to the
IPE, (2) inspect the query, script, or parameters used to generate the IPE, (3) agree data between the IPE
and the source, and/or (4) inspect the IPE for anomalous gaps in sequence or timing.

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7.2.1 Control Objective 1

Controls Specified by Fujitsu

_ Testing Performed

Results of Tests

Control Objective 1: Controls provide eeeanese assurance that access to the data centre and facilities with eainpilel equipment, storage media and program
documentation is restricted to properly authorised individuals.

1.1 Data Centre Access

Data centre specific physical access security
policies and procedures to control access to the
data centre and other sensitive areas, including
computer equipment and storage media, are
implemented and made available to Fujitsu staff
via the intranet.

Obtained and inspected the data centre and sensitive area
specific physical access security policies and procedures for
the in-scope Data Centre and determined whether these
were made available to Fujitsu staff via the Fujitsu intranet.

No deviations noted.

1.2 Access Within the Data Centre

Access beyond the security desk is protected by
a key-card system to restrict individual access to
specific data processing areas based on the
access level granted. New users requiring access
to the data centre must complete an access form,
which must be signed as approved by the line
manager responsible for the zones requested.

Observed that access doors are equipped with a key-card
system or equivalent to restrict individual access to specific
data processing areas.

Obtained and inspected the system generated data centre
user listing to determine whether users were granted access
levels in order to restrict individual access to specific data
processing areas based on the access level assigned.

Determined the population of new users granted access to
the data centre for the purposes of sample testing the new
users to determine whether access was approved by the
line manager and access levels specified and actioned as
requested.

No deviations noted.

Based on inspection of the data centre system
access listing, we determined there were no
new users to the Fujitsu data centre for the
period under examination.

1.3 CCTV

The data centre access is monitored through the
use of CCTV video cameras placed at strategic
locations around the data centre. The CCTV
video footage is monitored by security guards.

Observed that CCTV video cameras are placed at key
locations around the data centre to monitor user activity.
Observed that the CCTV video footage is monitored by the
security staff at the data centre.

No deviations noted.

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Controls Specified by Fuji

Testing Performed oe

Control Objective 1: Controls provide reasonable assurance that access to the data centre and facilities with computer equipment, storage media and program

documentation is restricted to properly authorised individuals.

1.4 Security Guards

Security guards are present at the data centre 24
hours per day and seven days per week. The
data centre can only be accessed through the
security desk manned by a security guard at all
times.

Inspected the data centre security guard log to determine
that security guards are present at the data centre (24 hours
a day and seven days per week), and that the data centre
can only be accessed through a central point (security
desk), which has security guards (or equivalent) in place.

No deviations noted.

1.5 Data Centre Visitors

Visitors are required to sign in at the reception
area and temporary badges are issued. Visitors
must be pre-notified to data centre security by a
Fujitsu employee.

Observed that visitors are granted access to the data centre
based upon pre-notification and that they are required to
sign in at the reception area and temporary badges are
issued after inspection of photo identification.

Observed that visitors are escorted by a Fujitsu staff at all
times in the data centre.

No deviations noted.

1.6 Failed Access Monitoring

Attempts to enter restricted areas without using
authentication devices are denied and a security
alert is triggered and logged. Data centre
management proactively follows up on security
alerts that are triggered.

For asample of months, inspected the monthly security alert
log reviews performed by the data centre facilities manager
and determined whether these were reviewed for suspicious
activity and proactively followed up.

No deviations noted.

1.7 Review of User Access within the Data Centre

Periodic reviews are performed by the data
centre facilities manager for users with access to
the data centre on a quarterly basis.

For a sample of quarters, obtained the quarterly periodic
review of user access performed by the data center facilities
manager and inspected it to determine whether the review
was performed timely and user access was amended
appropriately based on the output of the review.

No deviations noted.

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Control Objective 1: Controls provide reasonable assurance that access to the data centre and facilities with computer equipment, storage media and program
documentation is restricted to properly authorised individuals.

1.8 Deletion of User Access Obtained the system generated HR leavers list and No deviations noted.
Delivery team managers notify the local site I determined the complete and accurate population of
facilities team of terminations or transfers of their jeavers. We observed that there had not been any leavers I a. there have been no identified leavers that
direct reports. Upon notification user access is I I the review period. require their access to the data centre to be
revoked from the security access control system. removed in the period covered by this report, no
occurrences of this control noted.

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7.2.2 Control Objective 2

Controls Specified by Fujit su

Testing Performed —

_ Results of Tests

Control Objective 2: Controls provide reasonable assurance that computer equipment and facilities are protected from aamaae by fire, flood and other enuicnniental

hazards and maintenance agreements are in place.

2.1 Fire Suppression

Fire detection and suppression devices, such as
hand-held fire extinguishers, are strategically
placed throughout the entire data centre.

Observed the existence of fire detection and suppression
devices (e€.g., gaseous fire suppression devices, hand-held
fire extinguishers, smoke detectors and monitoring devices,
dry pipe sprinklers and two-hour firewall) throughout the
data centre.

No deviations noted.

2.2 Maintenance Schedule

Periodic inspection and maintenance is
performed on protection devices, sensors and
alarm systems.

Inspected the maintenance schedules (including backup
generators, UPS, fire detection and suppression, heating,
ventilation and air-conditioning units) and service reports for
these devices supporting the environmental monitoring
controls in the data centre and determined whether the
devices had been inspected and serviced during the period
of examination.

No deviations noted.

2.3 Environmental Monitoring

Smoke detectors and water, humidity and
temperature monitoring devices are installed
throughout the data centre to detect abnormal
environmental conditions.

Observed that smoke detectors and water, humidity and
temperature monitoring devices have been installed to
detect abnormal environmental conditions at the data
centre.

No deviations noted.

2.4 UPS Supply
UPS systems are installed to protect the facilities
and computer equipment from electrical power
fluctuations and outages.

Observed that UPS systems have been installed to protect
the facilities and computer equipment from electrical power
fluctuations and outages at the data centre.

No deviations noted.

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7.2.3 Control Objective 3

Controls Specific ad by Fujitsu

Testing Performed _

Results of Tests _

Control Objective 3: Controls provide reasonable Be citance ta programs, files and datasets that have been identified as requiring periodic backup are backed up on

retained.

3.1 Backup Definition

The Backup High Level Design documents define
the backup and recovery requirements for each
platform.

Obtained the Platform Hardware Instance List (PHIL) from
the POL owned Dimensions system which details the
current listing of all platforms and servers in operational use
within the POL account estate.

For a sample of platforms, inspected the Backup High Level
Design documents to determine whether they listed the
backup and recovery requirements for the platform.

No deviations noted.

3.2 Backup Toolset

Backups are performed either using NetBackup
or RMAN (automated tools) respectively for each
platform

Obtained the PHIL listing and selected a sample of
platforms.

Inspected the tool configuration and determined whether
NetBackup or RMAN were installed on the platform to
perform automated back-ups.

No deviations noted.

3.3 Backups are Written to a Secondary Location
Backups performed are written to a separate disk
array and are simultaneously written to a disk
array at the disaster recovery site.

Obtained the PHIL listing and selected a sample of servers.

Inspected the tool configuration on each server to determine
whether backups performed are written to a separate disk
array and are simultaneously written to a disk array at the
disaster recovery site.

No deviations noted.

3.4 Failed Backups

Failed backups are logged as events in the Tivoli
Works Scheduler tool for SMC review and
resolution.

For a sample backup failure logged in TWS, inspected the
alert to determine whether a TFS ticket was logged and
resolved appropriately.

Please refer to control 4.2 for the TWS configuration for
detecting job failures.

No deviations noted.

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7.2.4 Control Objective 4

_ Controls Specified by Fujitsu

_ Testing Performed —

Control Objective 4: Controls provide reasonable assurance that processing is appropriately authored and scheduled a that evens for scheduled processing

are identified and resolved.

4.1 Maintenance of Job Schedules

Access to amend job schedules is restricted to
appropriate Fujitsu personnel.

Obtained a system generated listing of access rights within
the scheduling tool, TWS, used to maintain the HNG-X job
schedules.

Inspected the users with access to amend job schedules to
determine whether the access was restricted to appropriate
personnel based on their job responsibilities.

No deviations noted.

4.2 Failed Job Schedules are Monitored
Automated alerts are configured and sent to
relevant teams upon the occurrence of a batch
job failure. These are investigated in line with the
incident management process.

Changes to tool configuration follow the change

management process in Control Objective 8.

Inspected the TWS tool, which manages all batch jobs for
in-scope applications, and determined that it is configured
to raise an alert if a batch job fails and to then pass this alert
to the TBSM tool.

Refer to control 6.6 for our testing procedures over the
handling of alerts.

No deviations noted.

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7.2.5 Control Objective 5

Controls Specified by Fujitsu I

Testing Performed

Results of Tests

issues are captured and investigated.

Control Objective: 5 Controls provide reasonable assurance that system availability, performance and capacity are routinely monitored to help ensure that potential

5.1 HNG-X and Credence Performance
Monitoring

The SYSMAN tools (Tivoli ITM and OEM)
proactively monitor CPU, Memory, Disk utilisation
and capacity of internal services on the platforms,
raising alerts for investigation by the SMC as
appropriate. Administrator access to the tools is
restricted to authorised users.

Changes to tool configuration follow the change
management process in Control Objective 8.

Inspected the configuration of the Tivoli ITM and OEM tools
on the HNG-X and Credence platform and determined
whether they are configured to monitor the CPU, memory,
disk utilisation and the capacity of internal services on the
servers.

Inspected the users with access to the tools used to monitor
the environment, and ascertained that it is restricted to
authorised users based on their job responsibilities.

Refer to control 6.6 for our testing procedures over the
handling of alerts.

No deviations noted.

5.2 HNG-X and Credence Capacity and
Availability Monitoring

The Tivoli ITM and OEM tools proactively monitor
the availability of Wintel, Oracle and Unix
platforms, feeding platform availability data to
Tivoli Business Service Manager (via Netcool
Omnibus) about the availability of platforms.
Tivoli Business Service Manager (TBSM)
presents this data in a business context to the
SMC, highlighting service affecting issues.
Administrator access to Netcool Omnibus is
restricted to authorised users

Changes to tool configuration follow the change
management process in Control Objective 8.

Inspected the Tivoli ITM and OEM tool configurations and

determined whether:

e These showed that the tools monitor and manage
availability and capacity of servers.

« Thresholds were defined which, if breached, would send
alerts to TBSM for SMC review.

Refer to control 6.6 for our testing procedures over the

handling of alerts.

Inspected the users with access to administer Netcool

Omnibus used to monitor the environment, and ascertained

that it is restricted to authorised users based on their job

responsibilities.

No deviations noted.

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Tests

issues are captured and investigated.

Control Objective: 5 Controls provide reasonable assurance that system availability, performance and capacity are routinely monitored to help ensure that potential

5.3 HNG-X Monitoring of Service Delivery

A monthly Service Review analysis is provided to
POL to review details of capacity, availability and
incident management performance against the
agreed service level targets (SLTs).

For a sample of months inspected the Service Review book
to determine whether the:

« analysis was provided to POL to review its agreed SLTs.

* book contained details of capacity, availability and
incident management performance.

No deviations noted.

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7.2.6 Control Objective 6

- Controls Specified by Fujitsu

Testing Performed —

_ Results of Tests _

Sonoh Oneeye 6: Controls provide reasonable assurance that significant operations neler are adequately reported, aaced: monitored through resolution and

resolved timely.

6.1 Incident Policies and Procedures

Fujitsu has documented policies and procedures
for managing incidents impacting the in scope
applications which are available via EMEIA
Connect to Fujitsu teams.

Through enquiry with management, identified the
documents that define the incident management processes
for the POL account.

Inspected the policies to determine whether these were
available to relevant Fujitsu employees via EMEIA Connect.

No deviations noted.

6.2 Incident Prioritisation

Incidents are assigned a priority in accordance
with the severity levels agreed with POL.

Obtained a system generated listing of incidents from the
incident managementtool, Information Direct.

For a sample of incidents, inspected the incident tickets to
determine whether they had been assigned a priority in
accordance with the severity levels agreed with POL.

No deviations noted.

6.3 Incident Resolution

Incidents are resolved in a timely manner, as per
the assigned priority.

For a sample of incidents selected from the incident
managementtool, Information Direct, inspected the incident
tickets to determine whether they had been resolved in a
timely manner, as per the assigned priority.

No deviations noted.

6.4 Major & Security Incident Review

Once a Major or Security Incident is resolved, a
formal closure and review is performed, including,
if applicable, a Root Cause Analysis.

Selected a sample of Major and Security Incidents from the
incident tool (Information Direct), and inspected the incident
tickets and incident reports to determine whether a formal
closure and review was performed, including, if applicable,
a Root Cause Analysis.

No deviations noted.

6.5 Incident Reporting

On a daily basis, the Fujitsu HSD / IMT reviews
the number and severity of outstanding incidents
in TFS.

For a sample of days, inspected the incident reports to
determine whether the Fujitsu HSD/IMT had reviewed the
number and severity of outstanding incidents in TFS.

No deviations noted.

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‘esting Performe i:

Control Objective 6: Controls provide reasonable assurance that significant operations incidents are adequately reported, tracked, monitored throug

resolved timely.

jh resolution and

6.6 Alert Handling

The Tivoli ITM and Netcool Omnibus tools
automate the collection of events and feed them
to the Tivoli Business Service Manager to
highlight areas of concern to the SMC.

Changes to tool configuration follow the change
management process in Control Objective 8.

Obtained a system generated listing of alerts from Tivoli
Business Service Manager.

For a sample of key events, inspected the alert and TFS
ticket to determine whether the alerts were flagged to the
SMC for resolution and that the events were resolved in a
timely manner.

No deviations noted.

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7.2.7 Control Objective 7

Controls Specified by Fi ujitsu

Testing Performed _

Results of Tests _

Control Objective: 7 Controls provide reasonable assurance that networks are managed to soriectial and site fequirements monitored for availability and response
times and issues are identified, tracked and resolved.

5.3 HNG-X Monitoring of Service Delivery (A
monthly Service Review analysis is provided to
POL to review details of capacity, availability and
incident management performance against the
agreed service level targets (SLTs).

For a sample of months, inspected the Service Review book
to determine whether the:

« analysis was provided to POL to review its agreed SLTs.

* book contained details of capacity, availability and
incident management performance.

No deviations noted.

7.1 Network Performance Criteria

Network availability and performance
requirements are clearly defined between Fujitsu
and POL in the Network Service policies and
network service is measured and monitored using
these agreed service levels.

Inspected the network service policy documentation on
EMEIA Connect to determine whether these are available
to Fujitsu employees and are used to measure and monitor
service levels.

No deviations noted.

7.2 Network Change Management

Network changes are managed using the
standard Fujitsu MSC process which includes
authorisation, testing (where deemed
appropriate) and approval prior to deployment.

Network Changes follow the change
management process in Control Objective 8.

Obtained a system generated listing of network changes
from the change management tool, MSC.

Selected a network change and inspected documentationto
determine whether this change was managed using the
standard Fujitsu MSC process including authorisation,
testing and approval prior to deployment.

No deviations noted.

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___ Controls Specified by Fujitsu

esting Performed

Control Objective: 7 Controls provide reasonable assurance that networks are managed to contractual and site requirements, monitored for availability and response
times and issues are identified, tracked and resolved.

7.3 Network Availability Monitoring

Network availability is monitored using several
tools, which send automated alerts to the
Network Operating Support Service Team
(NOSS) if key components are unavailable, or if
traffic levels breach predefined thresholds.

Changes to tool configuration follow the change
management process in Control Objective 8.

Inspected the configuration of the HP Openview, Spectrum
and Tivoli Netcool tools monitoring network availability, to
determine whether they are configured to send automated
alerts to the Network Operating Support Service Team
(NOSS).

No deviations noted.

7.4 Network Incident Management

Incidents relating to network availability are
managed using standard incident management
procedures.

Selected a network incident and inspected documentation
to determine whether it was managed using the standard
POL incident management procedures, and is included in
the standard incident management reporting to POL.

Refer to control 6.2 for our test of the incident management
process.

No deviations noted.

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7.2.8 Control Objective 8

Controls Specified by Fujits

Testing Performed

Control Objective 8: Controls provide (eaconabie assurance that acd csions to system software and menNorRe are authorised, tested approved, Boner implemented

and documented.

8.1 Change Management

The MSC toolset is used to manage all changes
with a joint decision between Fujitsu and POL as
to which parts of the tool are relevant for a
change.

Obtained a system generated listing of system software and
networks changes from the change managementtool, MSC.
Selected a sample of changes and_ inspected
documentation to determine whether the MSC toolset had
been used to manage these changes in accordance with the
defined procedures.

No deviations noted.

8.2 Change Approval

All changes must be authorised by the Fujitsu
Duty Manager or technical bridge, with approval
being documented in the MSC system. Changes
that cause major service interruption must also be
authorised by the Change Advisory Board (CAB),
with the approval documented in the meeting
minutes and within the MSC system.

Obtained a system generated listing of system software and
network changes from MSC.

For a sample of changes, inspected documentation to
determine whether these had been authorised and the
approval was documented in meeting minutes (including
CAB approval for major service interruption changes) and
withinMSC.

No deviations noted.

8.3 Emergency Changes

A change deemed necessary in order to resume
live service will be agreed and authorised and
documented during the incident along with
updates to POL at an agreed timeframe
dependent on the severity of the incident.

Obtained a system generated listing of system software and
network changes from MSC.

For a sample of emergency changes,

documentation to determine whether:

e they had been agreed, authorised and documented
during the incident.

* updates to POL had been sent as per the agreed
timeframes dependent on the severity of the incident.

inspected

No deviations noted.

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7.2.9 Control Objective 9

__ Results of Tests

Conti Objective 9: eoquee aE eeconeuee! assurance that new or modified application software development stars are authorised; tested, approved, piopery

implemented and documented.

9.1 System Development and Maintenance
Policies and Procedures

Fujitsu has a formal Systems Development Life
Cycle (SDLC) which incorporates phases
including Initiation, Requirements, Definition,
Design, Development, Deployment and
Maintenance.

Inquire with management to determine whether documents
that define the SDLC for the POL account are in place.

Inspected documentation on EMEIA Connect to determine
whether these were available to relevant Fujitsu employees,
and whether these phases include:

¢ Initiation.

e Requirements.
¢ Definition.

e Design.

e« Development.
« Deployment.

¢ Maintenance.

No deviations noted.

9.2 Change Control Board

Depending on the nature, changes must either be
approved by the Change Control Board (CCB)
before progressing into development, or by the
PEAK Targeting Forum (PTF).

Obtained a system generated listing of new or modified
application software changes from MSC.

For a sample of changes inspected documentation to
determine whether these had been appropriately approved
by either the Change Control Board (CCB) or the PEAK
Targeting Forum (PTF) before progressing into
development based on the nature of the change.

No deviations noted.

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“Controls Specified by Fujitsu

Control Objective 9: Controls provide reasonable assurance that new or modified een zatwars development efforts are Berngnaed tested, approved, properly

implemented and documented.

9.3 Design Proposal

Projects are outlined in a Design Proposal (DPR)
that is stored in SharePoint and is reviewed and
approved by POL and Fujitsu management.

Obtained a system generated listing of new or modified
application software changes from MSC.

Selected a sample of projects and inspected documentation
to determine whether the projects had a Design Proposal
(DPR) document that had been reviewed and approved by
POL as well as Fujitsu management and was stored in
SharePoint.

No deviations noted.

9.4 Change Testing

Changes are tested in line with the defined
procedure.

Obtained a system generated listing of new or modified
application software changes from MSC.

For a sample of changes inspected documentation to

determine whether, where applicable, for these changes:

e testing had been done by the relevant Fujitsu team and
POL team.

* test plans had been placed in the Quality Centre
application.

e the POL Testing Manager had emailed to indicate their
approval that testing has been successfully completed

No deviations noted.

9.5 Ability to Implement Changes

Only appropriate individuals have access to move
code builds between environments or promote
transports to live. Segregation of duties is
enforced between users able to develop and
implement changes respectively.

Obtained the list of users from the EPM server and
inspected the users with access to implement changes and
determined whether it was restricted to authorised users
based on their job responsibilities.

Obtained the list of users from the Serena Dimensions tool
server and inspected the users with access to develop
changes and determined whether segregation of duties was
enforced between users able to develop and implement
changes.

No deviations noted.

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Tes

Control Objective 9: Controls provide reasonable assurance that new or modifi

implemented and documented.

ied application software development efforts are authorised, tested, approved, properly

9.6 Approval to Implement Changes

POL approval is required to promote application
software changes to the live environment.
Approvalis captured within the relevant MSC.

Obtained a system generated listing of new or modified
application software changes from MSC.

For a sample of changes inspected documentation to
determine whether POL approval to implement the change
was documented within the ticket.

No deviations noted.

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7.2.10 Control Objective 10

“Controls ‘Specified by Fujitsu

Testing Performed by Emst & Young LLP _

_ Results of Tests —

properly authorised individuals.

Control Objective 10: Controls provide eascnenle assurance that access to system resources, including computing platonne and operating systems, is restricted to

10.1 Client Security Policies

Security requirements for infrastructure and
software are designed, documented and agreed
by both POL and Fujitsu.

Inquired with management to determine the documents that
define the information security architecture and procedures
for the POL account.

Inspected documentation on EMEIA Connect to determine
whether these were available to relevant Fujitsu employees,
and whether these had been reviewed and approved in line
with contractual requirements.

No deviations noted.

10.2 Baseline Operating System Standards

Platforms in operational use have defined
baseline standards that document their set up
and configurations, as agreed by Post Office
Limited.

Obtained the Platform Hardware Instance List (PHIL) from
the POL-owned Dimensions system which details the listing
of platforms and servers in operational use within the
account estate.

For a sample of Branch Database platforms in operational
use, inspected documentation to determine whether
baseline standards had been defined and agreed with POL
for these server technologies.

No deviations noted.

10.3. Baseline Operating System Standards
Implementation

Platforms in operational use are set up and
configured in line with documented and agreed
baseline standards. Variances from the baseline
standard are fully documented and appropriately
approved.

Obtained the PHIL and selected the Branch Database
platforms in operational use and inspected key configuration
settings to determine whether the platforms had been set up
and configuredin line with documented and agreed baseline
standards.

Where settings differed from the baseline, inspected
documentation to determine whether these variances had
been documented and approvedin accordancewith defined
procedures.

No deviations noted.

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Controls Specified by Fujitsu

Testing Performed by Ernst & I Young LLP

Control Objective 10: Controls provide reasonable assurance that access to system resources, including computing a sHonns and Ss ane is restricted to

properly authorised individuals.

10.4 User (Fujitsu) Set-up and Amendment

Fujitsu users requiring new or modified access to
POL systems are set up appropriately after
approval by an appropriate Fujitsu line manager.

Obtained a system generated listing of users from the POL
managed starters, transfers and leavers management tool,
EMEIA Connect.

For a sample of Fujitsu users inspected documentation to
determine whether the users had been set up in accordance
with the access request based on the approval by an
appropriate Fujitsu line manager.

No deviations noted.

10.5 User (Fujitsu) Deletion

Access to Post Office Limited systems for Fujitsu
users is removed in a timely manner.

Obtained a system generated EMEIA Connect report of
leavers.

For a sample of Fujitsu staff that left the POL account
inspected the POL account user access lists to determine
whether their access had been removed in a timely basis.

No deviations noted.

10.6 Periodic User Reviews

Fujitsu and POL review user access to systems
on a quarterly basis to determine the
appropriateness of access, and changes
performed as deemed necessary.

For a sample of quarterly reviews inspected the ISMF M6
meeting minutes to determine whether users and their
access rights had been reviewed by Fujitsu security
management and POL, and changes requested were
actioned appropriately.

No deviations noted.

10.7 Two-Factor Authentication

Access to POL systems for Fujitsu users is
controlled using two-factor authentication.

Observed a Fujitsu staff logging on to the POL systems
network and determined whether it required two factor
authentication.

No deviations noted.

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7.2.11 Control Objective 11

___ Testing Performed by Emst & Young LLP

Results of Tests.

Control Objective 11: Controls provide reasonable assurance that access to databases, data files and programs is restricted to properly authorised individuals.

11.1 Patch Management

In-scope platforms are maintained with vendor
released security updates and patches in line with
agreed procedures and timescales.

Patch updates follow the change management
process in Control Objective 8.

Obtained the Platform Hardware Instance List (PHIL) from
the POL-owned Dimensions system which details the
current listing of platforms and servers in operational use
within the POL estate.

For an in-scope sample platform inspected documentation
to determine whether the most recent patches had been
applied as per the MSC change process.

No deviations noted.

11.2 System Administrators

Access to perform system administrator functions
is restricted to appropriate Fujitsu personnel.

Obtained the PHIL listing of live POL platforms.

For a sample of servers inspected system-generatedlists of
users with system administrator rights to determine whether
access to perform system administrator functions was
restricted to appropriate users based on their job
responsibilities.

No deviations noted.

11.3 Database Administrators

Access to administer POL databases is restricted
to appropriate Fujitsu personnel.

Obtained the PHIL listing of live POL platforms

For HNG-X, selected a sample of in-scope databases and
inspected system-generated lists of access rights to
determine whether access to administer the databases was
restricted to appropriate users based on their job
responsibilities.

No deviations noted.

11.4 Administration Tools and System Utilities
Access to administration tools and system utilities
on Post Office Limited infrastructure is restricted
to appropriate Fujitsu personnel.

Obtained the PHIL listing of live POL platforms

For a sample of HNG-X and Credence platforms inspected
system-generated lists of access rights to determine
whether access to administration tools and system utilities
was restricted to appropriate users based on their job
responsibilities.

No deviations noted.

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Testing Performed by Emst & Young LLP _ Results of Tests

Control Objective 11: Controls provide reasonable assurance that access to databases, data files and programs is restricted to properly authorised individuals.

11.5 Unauthorised Changes are Monitored Obtained the PHIL listing of POL platforms. No deviations noted.

The TripWire system is configured to monitor and I Fora sample of application servers, inspected configuration
alert on changes made to in-scope applications I settings to determine whether the TripWire system was
and underlying data within the HNG-X estate. configured to monitor and alert on changes made to in-
scope applications and underlying data.

Changes to tool configuration follow the change
management process in Control Objective 8.

11.6 Access to Data Files/Programs Obtained the PHIL listing of POL platforms. No deviations noted.

Access is restricted to production program and_ I Fora sample of platforms, inspected system-generatedlists
data files through the use of user groups to of access rights to determine whether access to significant
restrict and allow access. production program and data files was appropriately
restricted to users based on their job responsibilities.

Description of Tests and Results

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7.2.12 Control Objective 12

o Controls Specified by Fujitsu —

‘Testing Performed by Emst & Young LLP

Sonal ‘Obiestive 12: Controls provide reasonable assurance that networks and system resources are protected fan een threats and access violations are detected,

reported and investigated.

6.4 Major & Security Incident Review

Once a Major or Security Incident is resolved, a
formal closure and review is performed, including,
if applicable, a Root Cause Analysis.

Selected a sample of Major and Security Incidents from the
incident tool (Information Direct) and inspected incident
tickets to determine whether a formal closure and review
was performed, including, if applicable, a Root Cause
Analysis.

No deviations noted.

12.1 Firewall Configuration Access

Access to set-up and configure firewalls is
restricted to appropriate users from the Networks
team.

Obtained the system list of network users from Active
Directory with access to configure firewalls and inspected it
to determine whether access was restricted to network team
users based on their job responsibilities.

No deviations noted.

12.2 Configuration Changes

Changes to firewall configuration follow the
standard Fujitsu MSC _ process _ including
authorisation, testing (where deemed
appropriate) and approval of changes before they
are implemented.

Obtained the PAB deployment list.

Selected a sample change to firewall configuration and
inspected change documentation to determine whether the
change had been authorised, tested and approved prior to
implementation as per the MSC process tested in Control
Objective 8.

No deviations noted.

12.3 Anti-virus Software

Anti-virus software is installed on critical Windows
and Red Hat Linux network platforms as agreed
with POL. Installed anti-virus software is up to
date in line with agreed contractual requirements.

Selected a sample of servers from PHIL and inspected the
Anti-Virus tool to determine that each server had Anti-Virus
software installed which was up to date.

No deviations noted.

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esting Perform '& Young LLP

reported and investigated.

Control Objective 12: Controls provide reasonable assurance that networks and system resources are protected from external threats and access violations are detected,

12.4 Intrusion Detection System (IDS)

IDS is installed on critical network segments as
per POL contractual requirements to detect
threats and alert the networks team.

Changes to tool configuration follow the change
management process in Control Objective 8.

Inspected the IDS tool configuration to determine whether it
is configured to monitor, detect and alert the networks team.
Obtained an IDS alert and inspected documentation to
determine whether it was managed in accordance with
agreed contractual requirements.

No deviations noted.

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7.2.13 Control Objective 13

_Controls Specified by Fujitsu _

Results of Tests

Control Objective 13: Controls provide reasonable assurance that remote access is appropriately restricted to authorised personnel.

10.4 User (Fujitsu) Set-up and Amendment

Fujitsu users requiring new or modified access to
POL systems are set up appropriately after
approval by an appropriate Fujitsu line manager.

Obtained a system generated listing of users from the POL
managed starters, transfers and leavers management tool,
EMEIA Connect.

Selected a sample of Fujitsu users and inspected
documentation to determine whether these users had been
set up in accordance with the access request, and that the
request had been approved by an appropriate Fujitsu line
manager.

No deviations noted.

10.7 Two-Factor Authentication

Access to POL systems for Fujitsu users is
controlled using two-factor authentication.

Observed a Fujitsu staff logging on to the POL systems
network and determined whether it required two factor
authentication.

No deviations noted.

13.1 Remote Access Authorisation

The use of Radius Authentication and CHAP for
Counters accessing the data centre, ensures that
access is restricted to approved devices.

Changes to this configuration follow the change
management process in Control Objective 8.

Obtained the high level CHAP password documentationand
inspected it to determine whether Radius Authentication
and CHAP rules and procedures were established for
validating Counters’ remote access requests.

No deviations noted.

Description of Tests and Results

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