FUJ00235003 - Security Management Service: Service Description

Evidence on official site

FUJ00235003
FUJ00235003

oO Security Management Service: Service Description
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

Document Title: Security Management Service: Service Description
Document Reference: SVM/SDM/SD/0017

Document Type: Service Description — Contract Controlled Document
Release: HNG-X

Abstract: Service Description for the Security Management Service as

provided under contract to Post Office

Document Status: APPROVED

Author & Dept: Phil Boardman, Fujitsu Service Architect

External Distribution: As reviewer / approver lists.

Information See section 0.8.

Classification:

Approval Authorities:

Name Re

Post Office Limited: Head of Horizon Commercial
and Contract Management

Dean Bessell Post Office Limited: CISO for Retail and Controls
Steve Browell Fujitsu: POA CISO

Rajivsinh Rathod

Note: See Post Office Account HNG-X Reviewers/Approvers Role Matrix (PGM/DCM/ION/00071) for guidance.

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 1 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[2] Security Management Service: Service Description
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

0 Document Control

0.1 Table of Contents

i DOCUMENT CONTROL 2

0.1 Table of Contents

0.2 Document History

0.3 Review Details .

0.4 Associated Documents (Internal & External)

0.5 Abbrevi.

0.6 Glossary.

0.7 Changes Exp

0.8 Information Classification

4 SERVICE SUMMARY 8

41.4 Introduction .

41.2 Deliveries
1.2.4 Security of the HNG-X Application when Migrated to Post Office Cloud
1.2.1

4.3

1.4

2 HNG-X.. 10

2.4 SERVICE DEFINITION...
2.4.4 SECURITY ORGANISATION AND MANAGEMEN 10
2.1.2 COMPLIANCE MONITORING AND AUDIT . 10
2.1.3 CRYPTOGRAPHIC KEY MANAGEMENT 10
2.4.4 PINPADS......... "1
2.4.5 SECURITY EVENT MANAGEMENT. ‘AND. FIREWALL EVENT ANALYSIS 11
2.1.6 SYSTEM AND PHYSICAL ACCESS CONTROL ..
2.4.7 ANTI-VIRUS AND MALICIOUS SOFTWARE MANAGEMENT...
2.1.8 PREVAILING THREATS AND VULNERABILITY MANAGEMENT ..
2.1.9 SECURITY INCIDENT REPORTING AND PROBLEM MANAGEMEN' 15
2.4.4 SYSTEM SECURITY CHANGE MANAGEMENT

PCI PENETRATION TESTING SERVICE...
FILE INTEGRITY MONITORING.
PCI SUPPORT FOR POST OFFICI
SECURITY AWARENESS AND TRAINING .
INFORMATION RETRIEVAL AND AUDIT
LITIGATION SUPPORT.
Removed by CCN1660a

MANAGEMENT OF SECURITY RISKS
REPORTING...
2° SERVICE AVAILABILIT

.3 SERVICE LEVELS AND REMEDIES.
GENERAL PRINCIPLES
SERVICE LEVEL RELIE

RECTIFICATION PLAN.
SERVICE LEVELS FOR WHICH LIQUIDATED DAMAGES APPLY ..

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref. SVM/SDM/SD/0017
2023 CONFIDENCE) Version: 9.0
Date: 25-Sep-2023

UNCONTROLLED IF PRINTED OR

STORED OUTSIDE DIMENSIONS CONTRACT CONTROLLED PageNo: 2 0f 25
FUJ00235003
FUJ00235003

[2] Security Management Service: Service Description
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

2.3.5 SERVICE LEVELS FOR WHICH NO LIQUIDATED DAMAGES APPL’
2.3.6 OPERATIONAL LEVEL AGREEMENT.
2.3.7 PERFORMANCE METRICS.
2.3.8 DESIGN TARGETS ....

2.41 RECORD QUERIES
ASSETS AND LICENCES

2.6 CHARGES...
2.6.1 OPERATIONAL FIXED CHARGES.
2.6.2 OPERATIONAL VARIABLE CHARGE .......
2.6.3 ADDITIONAL OPERATIONAL VARIABLE CHARGE...

.7 DEPENDENCIES AND INTERFACES WITH OTHER OPERATIONAL SERVICES

POST OFFICE DEPENDENCIES AND RESPONSIBILITIES ..

9 BUSINESS CONTINUITY.

10 DOCUMENTATION SE’

Nn

lI
eS

Nn

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref SVM/SDMISDIO017
2023 CONFIDENCE) Version: 9.0

Date: 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 3 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description =
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

0.2 Document History

VersionNo. Date Summary of Changes and Reason for Issue Associated Change -
CP/PEAK/PPRR
Reference

1.0 24/08/06 Agreed

1.4 28/08/08 Amendments after Aug 08 review with POL

2.0 34/12/2008 Agreed

24 09/08/2010 Amendments after review of service. Change for CTO724

22 13-Oct-2010 Updated in response to review comments

3.0 45-Oct-2010 Approval version

3.4 28 -Oct 2013 Amendments for CCNs listed CCN1305a, CCN 1306a,
CCN1309a, CCN 1332a

3.2 30-Oct-2013 Revised following CISO review. As above

3.3 12-Nov-2013 Minor corrections for review version. As above

34 22-Nov-2013 _I Definition of abbreviations from 2.1.7 (G) added to section 0.5.

35 25-Nov-2013 I Corrections to document references in 0.3; 2.1.6; 2.1.9.1,

40 04-Dec-2013 Approval version

44 20 —Mar-2014 Amendment for CCN listed; deleted section 3 HNG-X CCN1400

Applications Roll Out ~ Transitional Period; corrected section
numbering,
5.0 04-Apr-2014 Approval version [subsequently not approved] CCN1400
60 21-May-2015 I Approval version: same content, Fujitsu author and Fujitsu and I CCN1400

POL approvers and reviewers changed only, shown in italics.
[subsequently not approved]

64 24-Aug-2021 I Amend 1.1 to remove Credence/MDM CCN1400
Amend 1.1 to remove Salesforce Support. CCN1601
Amend 1.1 to remove POLSAP Applications Support. CCN1609
Amend 1.1 to remove POLSAP Hosting CCN1655

Amend 0.4; 2.1.12 to refer to DES/SEC/ION/2006. Add new CCN1660a
2.1.15.2 AUW PCI scanning. Delete 2.1.17 LINK Compliance
Questionnaire.

Amend 2.1.15; 2.1.16.4 with reference to Payment and CCN1672a
Banking Service
Amend 1.2; 2.1.5; 2.1.6.1; 2.1.6.2; 2.1.7; 2.1.8.1; 2.1.8.2; CCN1678

2.1.11; 2.1.12; 2.1.13; 2.1.18; 2.1.19; add new 1.2.1; 1.2.2; in
respect of migration to Post Office Cloud

62 08-Nov-2021 I Correction to cross-references within 2.1.16.
Add part F to 2.1.3 to include Management of SHA-2 CCN1671
cryptographic material.

63 24-Feb-2022 I Amendments in response to some of the Post Office

comments submitted on 23-Dec-2021
POL approvers and reviewers amended as requested.
Section numbers amended at 2.1.5; 2.1.6; 2.1.7; 2.1.13

Amend 2.1.2 A to remove reference to Service Desk CCN1409
Amend 2.1.2 A to remove reference to Service Integration CCN1610
Service
Copyright Fujitsu Services Ltd 2006- _ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDMISDIO017
2023 CONFIDENCE) Version: 9.0
Date: 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 40f 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[ee] Security Management Service: Service Description
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

Version No. Summary of Changes and Reason for Issue Associated Change -
CP/PEAK/PPRR
Reference

Delete 2.1.6.2.1 D Global User Request activity, no longera I CCN1637b
Fujitsu responsibility.

64 25-May-2022 I Added optional reviewers as POL request.
65 30-May-2022 I Amended typographical (punctuation only) errors in 2.1.2.4
21.6.2.2.A

Corrected references in 2.1.8.2.D, 2.1.9.1 from
SVM/SDM/PRO/0012 to SVM/SDM/PRO/0018

70 07-Jun-2022 I Approval version
7A 17-Mar-2023 I Amend 1.4 to add E for P2PE Asset Management Service CCN1657d
Amend 2.1.15 “Period Two”, “Search Criteria”, and 2.1.16.4. CCN1701

Divide 2.1.19 into two, adding new 2.1.9.2 Weekly Reporting. I CCN1718

Add new 2.1.15.1.2 to cover signing and encryption of data CCN1723a
queries.

72 21-Apr-2023 ‘I Removed Dionne Harvey from review and approver tables.

8.0 26-Apr-2023 __I Approval version

8.4 42-Sept-2023 I Amended paragraph 2.1.6.2 in respect of the decommissioning I CCN1739
of TESQA.

Amended paragraph 2.1.8.2 in respect of the replaced and CCN1740
extended Vulnerability Management solution.

9.0 25-Sep-2023 I Approval version

0.3 Review Details

Review Comments by :

Review Comments to Matthew Lenton & Post Office Account Document Management

Mandatory Review

Role Name

Post Office: CISO for Retail and Controls Dean Bessel

Post Office: Head of Horizon Commercial and Contract Rajivsinh Rathod,

Management

Post Office: IT Document Specialist Steven Voutha:

Fujitsu: Commercial Manager Helen Venters

Fujitsu: CISO Steve Browell

Fujitsu: Service Architect Phil Boardman

Role Name

Post Office: Security Assurance and Governance Julian Higgs #

Specialist

Post Office: Head of Security Architecture Dave King + ]

Post Office: Head of Post Office CCOE Ben Owens [

Post Office: Head of Integration Engineering, MI, Data Graham Bevan

Strategy & Analytics

Post Office: CCOE Service Manager James High? i
SCopyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref. SVMISDMISDIO017
2023 CONFIDENCE) Version: 9.0
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Pane no: pupae 708

STORED OUTSIDE DIMENSIONS.
FUJ00235003

FUJ00235003
co Security Management Service: Service Description
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)
Fujitsu: Information Security Management Chris Stevens; Farzin Denbali
Fujitsu: SSC (for Configuration Management) ‘Adam Woodley
Fujitsu: Security Architect Dave Haywood
Fujitsu: Service Architecture Lead Alex Kemp
Fujitsu: Document Manager Matthew Lenton
Fujitsu: Head of Service Delivery Steve Bansal
sued for Informatio
ibution list to a mi
Position/Role Name
(*) = Reviewers that returned comments
0.4 Associated Documents (Internal & External)
Reference Version Date Title Source
PGM/DCM/TEM/0001 POA Document Template Dimensions
(DO NOT REMOVE)
DES/SEC/ION/2006 PCI Cardholder Environment Dimensions
SVM/SDM/PRO/0018 POA Operations Incident Dimensions
Management Procedure
SVM/SEC/POL/0003 Post Office Account HNG-X Dimensions
Information Security Policy
SVM/SDM/SD/0015 Reconciliation Service, Service Dimensions
Description
(POL: POL Community Information Security I Dimensions
POL/HNGICIS/001) Policy for Horizon
SVM/SEC/POL/0005
SVM/SEC/PRO/0009 POA HNG-X Patch Management Dimensions
Work Instruction
SVMISEC/STD/1985 Network Operational Security Dimensions
Enforcement Configuration

Unless a specific version is referred to above, reference should be made to the current approved
versions of the documents.

0.5 Abbreviations

nition

APOP Automated Payment Out Payment

ARQ Audit Record Query

CAN Platform code for the Certification Authority Server

cc Contract Controlled Document

cIsP Community information Security Policy

EPOSS Electronic Point of Sale

iD Identification Number
Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Raf SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PayeNo: are

STORED OUTSIDE DIMENSIONS.
Fe)
FUJITSU

FUJ00235003
FUJ00235003

Security Management Service: Service Description
FUJITSU RESTRICTED (COMMERCIAL IN

CONFIDENCE)

Abbreviation

Definition

IDS Intrusion Detection System
IPS Intrusion Prevention System
ISMF Information Security Management Forum
Iso International Standards Organisation
KMNG Key Management
MIs Management Information System
NPS Network Persistent Store
PAN Primary Account Number
PCI DSS Payment Card Industry Data Security Standard
PIN Personal Identification Number
POL Post Office Ltd
POA Fujitsu Post Office Account
TOR Terms of Reference
VPX HNG-X VPN (Virtual Private Network) Server
VSD Virtual Server Host Discrete
0.6 Glossary

0.7 Changes Expected

nn

0.8

Information Classification

The author has assessed the information in this document for risk of disclosure and has assigned an
information classification of FUJITSU RESTRICTED (COMMERCIAL IN CONFIDENCE).

©Copyright Fujitsu Services Ltd 2006-
2023

UNCONTROLLED IF PRINTED OR
STORED OUTSIDE DIMENSIONS.

FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

CONTRACT CONTROLLED

Ref SVMISDM/SDIO017
Version: 9.0

Date: 25-Sep-2023

Page No: 7 of 25
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

1 SERVICE SUMMARY

1.1 Introduction

The Security Management Service provides a range of security-related activities that support the
establishment and maintenance of an ISO 27001 compliant infrastructure. The Security Management
Service monitors operations and introduces specific protective security controls to maintain the integrity,
availability and confidentiality of information used and produced by the various Services, other than the
Service Integration Service.

1.2 Deliveries

Fujitsu's contractual obligations for delivering and maintaining provision of a secure system is set out in
Clause 16 (Security) of the Agreement. The Security Management Service consists of the following
elements for management of the security of the HNG-X Service Infrastructure and the HNG-X
Application:

(a) Implementation and maintenance of Post Office security policy and procedures;
(b) Compliance monitoring and audit;

(c) Cryptographic key management;

(d) Security event management and firewall event analysis;
(e) System and physical access control;
(f) Anti-virus and malicious software management;

(g) Monitoring of any IDS or IPS in place;

(h) Security incident reporting and problem management;
(i) System security change management;

(i) Security awareness and training;

(k) Information Retrieval and Audit;

(I) Subject Information Requests management;

(m) Prevailing threats and vulnerability management;
(n) Litigation support;

(0) LINK compliance questionnaire;

(p) Management of Risk;

(q) Monthly Reporting;

(r) File Integrity Monitoring;

(s) PCI DSS support;

(t) PCI DSS internal penetration testing.

1.2.1 Security of the HNG-X Application when Migrated to Post
Office Cloud

In order for the Security Management Service to continue to provide support for those service elements,
in the event that scanning and monitoring identify potential incidents, and to continue to provide other

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref SVM/SDMISDIO017
2023 CONFIDENCE) Version: 9.0

Date: 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 8 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

relevant HNG-X Operational Services, Fujitsu Services will be dependent on the following Post Office
Responsibilities:

(a) Post Office's provision of vulnerability management for operating systems and the underlying
infrastructure of the Post Office Cloud; and

(b) Post Office's provision of the following security technologies for use in the Post Office Cloud:
i. anti-virus and malicious software tooling;

ii. intrusion detection or prevention mechanisms;

iii file integrity monitoring tooling; and

iv. Vulnerability scanning technology.

1.2.2

Fujitsu Services shall not be entitled to relief under clause 39 where the Post Office Responsibilities in
paragraph 1.2.1 are failed as a direct result of unauthorised access or hacking (whether or not
constituting an offence under the Computer Misuse Act 1990) to the Post Office Cloud or the Post Office
Service Environment (which is gained through the Post Office Cloud) which were caused by
vulnerabilities or incidents directly arising out of:

(a) Fujitsu Services not complying with its security obligations set out in this Agreement in respect of the
HNG-X Application;

(b) Fujitsu Services not complying with Paragraph 1.2A of Schedule C3; or

(c) a breach of Fujitsu Services’ obligations under this Agreement or Applicable Law caused by Fujitsu
Services' negligence.

1.3 Training

The Security Management Service staff will be appropriately trained to carry out the Service and training
requirements reviewed on a yearly basis.

1.4 Responsibilities

In performing the Security Management Service, Fujitsu Services shall be responsible for:
A. Delivery of the security policy as specified in paragraph 4.1.3 of Schedule A4 of the Agreement;

B. Maintaining with Post Office the identity of the persons from both Parties authorised to receive
sensitive security-related material (including cryptographic key components);

C. Liaising with Post Office in the manner described in the CCD entitled: "Post Office HNG-X
Account Information Security Policy" (SVM/SEC/POL/0003); and

D. Running a Monthly Security Forum with input by POA Operational Security providing agreed
Monthly reports.

E. Assurance of the P2Pe Asset Tracking Process and auditing of the adherence to the process by
Fujitsu Services and its sub-contractor.

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref SVM/SDMISDIO017
2023 CONFIDENCE) Version: 9.0

Date: 25-Sep-2028
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 9 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

2 HNG-X

2.1 SERVICE DEFINITION

2.1.1 SECURITY ORGANISATION AND MANAGEMENT

Security organisation and management within the Security Management Service provides a number of
organisational and management activities required for compliance with SO 27001 and to support PCI
DSS standard. These are:

The setting up and operating of the ISMS compliant with IS027001

B. the co-ordination of security activities and prioritising of activities according to risk within the
appropriate Fujitsu Services Security risk register;

C. the creation and maintenance of security-related procedural and process documentation to assist
compliance and help maintain correct operation by Fujitsu Services and Post Office staff;

D. the regular reviews of Fujitsu Services Security Management Service documentation to provide
appropriate security input and compliance to the requirements of ISO 9001;

E. the management of ISO 27001 gap analysis, preparation of a plan for implementation in
accordance with agreed terms of reference (TOR) and monitoring of corrective actions;

F. informing Post Office of any changes to the HNG-X Infrastructure and Applications that are likely
to have an impact upon security; and

G. Support POL with PCI DSS framework to achieve their compliance.

2.1.2 COMPLIANCE MONITORING AND AUDIT

Compliance monitoring and audit within the Security Management Service provides a number of
compliance monitoring and audit activities required for compliance with ISO 27001. These are:

A. The undertaking of periodic physical security and system security audits of the Data Centre,
and other locations used to provide the Services on a risk management basis to provide
ongoing assurance of compliance to security policies and procedures. Activities will include
reviews of operational processes, provision of reports covering IT, environmental, physical,
personnel security etc. and the monitoring of identified corrective actions;

and

B. The provision of advice and guidance on issues affecting personnel security within Fujitsu
Services including the investigation of personnel security issues and staff vetting queries.

C. Produce a monthly plan to address the various Audit and ISO/IEC 27001 compliance issues,
and shared with the customer in the monthly review.

2.1.3 CRYPTOGRAPHIC KEY MANAGEMENT

The cryptographic key management element of the Security Management Service provides a number of
cryptographic key management activities. These are:

A. Management of the KMNG Workstation and the Active Directory SubCA for the creation,
distribution and installation of required cryptographic material to the live estate and the
maintenance of periodic key replacement for all Branches in addition to the safeguarding of live
and reserve keys;

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 10 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

B. Operation of Key management functionality and configuration changes to the HNG-X Application
in order to optimise service;

C. Management of KMNG and Active Directory (SubCA) event logging and incident handling to
assist the Service Desk Service, the Systems Management Service, the Third Line Support
Service and the Application Support Service (Fourth Line) in error resolution and problem
management;

D. Management of the manual cryptographic estate by maintaining the creation, distribution,
auditing and periodic replacement of cryptographic keys within agreed timescales; and

Supervision and management of the Root CA (CAN) as the trust anchor of the HNG-X system
Management of SHA-2 cryptographic material for the CAPO interface.

2.1.4 PIN PADS

2.1.4.1 The Security Management Service shall ensure PIN Pads comply with the requirements
of ISO 9564. Fujitsu Services' key management service for any key directly or indirectly
protecting the secrecy of PIN values (together, "PIN Encryption Keys") shall comply with
ISO 11568 Parts 1 to 3.

2.1.4.2 The key management service used between each PIN Pad and the rest of the HNG-X
Services shall be the DUKPT scheme as described in paragraph 6.2 of Schedule A4 of
the Agreement.

2.1.4.3 In the event of an actual or suspected key compromise in respect of a PIN encryption key
used within the HNG-X Services, Fujitsu Services shall implement key change
mechanisms in accordance with the principles stated in ISO 11568 Parts 1 to 3.

2.1.5 SECURITY EVENT MANAGEMENT AND FIREWALL EVENT
ANALYSIS

The security event management and firewall event analysis element of the Security Management Service
provides a number of security event management and firewall event analysis activities. These include:

2.1.5.1. For those elements of the HNG-X System not migrated to Post Office
Cloud:

A. Management of audit mechanisms to monitor detect and record events that might threaten the
security of the HNG-X Service Infrastructure;

B. Operation of the security event management system utilising the Systems Management Service
system to track and report events of security significance and daily monitoring of the security
event management system to identify relevant events and logging of details;

C. Regular analysis of audit trails to identify new features and vulnerabilities introduced by new
systems to facilitate trend analysis and to assist the investigation of security breaches;

D. Reviewing security configurations of event filters to optimise efficiency and minimise security
weaknesses;

E. Undertaking risk assessments to establish adequate firewall policies / rule bases and the
subsequent monitoring of events generated by the HNG-X Service Infrastructure;

SCopyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref. SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date: 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 11 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

F. Analysis of firewall event logs using trend analysis software to identify the presence of any
potential attacks or of areas of vulnerability and the provision of advice for any remedial action;
and

G. Prompt investigation and remedial action in order to minimise the impact of any security breach.

2.1.5.2 For those elements of the HNG-X System migrated to Post Office Cloud:

A. Daily monitoring of the security event management system to identify relevant HNG-X Application
events and logging of details;

B. Regular analysis of audit trails to identify new features and vulnerabilities introduced by new
HNG-X Application systems to facilitate trend analysis and to assist the investigation of security
breaches;

C. Reviewing security configurations of HNG-X Application event filters to optimise efficiency and
minimise security weaknesses; and

D. Prompt investigation and remedial action in order to minimise the impact of any HNG-X
Application security breach.

2.1.6 SYSTEM AND PHYSICAL ACCESS CONTROL

The system and physical access control element of the Security Management Service provides a number
of system and physical access controls which are defined within the document entitled: “Access Control
Policy” (RS/POL/003), these are:

2.1.6.1 SYSTEM ACCESS CONTROL

2.1.6.1.1 For those elements of the HNG-X System not migrated to Post Office
Cloud this consists of:

A. Management of the process for validating those Users are authorised before being permitted
access to the HNG-X Service Infrastructure.

B. Management of the allocation and auditing of Ikey tokens are used to validate that Fujitsu
Services users who access the HNG-X Central Infrastructure from locations remote from the
Data Centres do so via secondary token authentication

Cc. Management of system controls in the environment, Data Centre or location where the HNG-X
Services are performed.

2.1.6.1.2 For those elements of the HNG-X System migrated to Post Office Cloud
this consists of:

A. Management of the process for validating and removing those Users are authorised before being
permitted access to the HNG-X Application in adherence with sections 11.2 and 11.3 of the CRD
entitled “Community Information Security Policy for Horizon” (SVM/SEC/POL/0005).

2.1.6.2 PHYSICAL ACCESS CONTROL

2.1.6.2.1 For those elements of the HNG-X System not migrated to Post Office
Cloud this consists of:

A. Access to the live or test Data Centre is requested by a Fujitsu Services user via Fujitsu Services’
online system in the following manner:

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 12 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

e the Fujitsu Services user will receive an e-mail to acknowledge submission;

e the Data Centre Operations Service will check throughout the day/night for any requests
not yet actioned;

e the Data Centre Operations Service will action request with approval or rejection; and

e the Fujitsu Services user will receive notification to sanction request or refuse request
with the reason for non-approval.

B. All Fujitsu Services users shall register and sign-in at reception when visiting the various
premises occupied by the Service Desk Service, Systems Management Service and Third Line
Support Service respectively.

2.1.6.2.2 For those elements of the HNG-X System migrated to Post Office Cloud
this consists of:

A. All Fujitsu Services users shall register and sign-in at reception when visiting the various
premises occupied by the Systems Management Service and Third Line Support Service
respectively.

2.1.7 ANTI-VIRUS AND MALICIOUS SOFTWARE MANAGEMENT

The anti-virus and malicious software management element of the Security Management Service
provides a number of anti-virus and malicious software management activities; these are:

2.1.7.1.1 For those elements of the HNG-X System not migrated to Post Office
Cloud:

A. Management of the distribution of updated anti-virus software and appropriate signatures across
the HNG-X Service Infrastructure to maintain protection of the HNG-X Services from viruses and
malicious software;

B. Initial configuration of alerting mechanisms and event filters to provide automatic notification and
prompt virus incident response;

C. Provision of regular updates to identify and cleanse new and emerging virus strains;

D. Daily and periodic checks of emerging viruses and other malicious software to be informed of
threats and to determine the available defensive measures; and

E. Provision of event monitoring and incident response via normal incident handling procedures.
Analysis of details to understand the threat and inform corrective actions.

F. Monthly reporting in consideration of any of the above.

G. Conducting of scheduled scan on PCI platforms and save Log files for further analysis for a
period of 12 months. (MIS ,NPS, VSD, VPX Platforms).

2.1.7.1.2 For those elements of the HNG-X System migrated to Post Office Cloud:

A. Management of the distribution of updated anti-virus software and appropriate signatures across
the PODG file shares to maintain protection of the PODG Service from viruses and malicious
software;

B. Initial configuration of alerting mechanisms and event filters to provide automatic notification and
prompt virus incident response for PODG Service;

C. Provision of regular updates to identify and cleanse new and emerging virus strains for PODG

Service, only;
©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref. SVM/SDM/SD/0017
2023 CONFIDENCE) Version: 9.0
Date: 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 13 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

D. Daily and periodic checks of emerging viruses and other malicious software to be informed of
threats and to determine the available defensive measures for PODG Service, only; and

E. Provision of event monitoring and incident response via normal incident handling procedures.
Analysis of details to understand the threat and inform corrective actions for PODG Service, only.

F. Monthly reporting in consideration of any of the above for PODG Service, only.
2.1.8 PREVAILING THREATS AND VULNERABILITY MANAGEMENT

2.1.8.1 The Security Management Service shall ensure that any prevailing threats and
vulnerabilities arising from hackers and / or crackers are managed in accordance with
ISO 27001. Such prevailing threats and vulnerabilities may be exploited despite the
presence of anti-virus monitoring, firewalls and intrusion detection software which Fujitsu
Services has in place throughout the HNG-X Service Infrastructure (this element of
Security Management Service to be limited to the HNG-X Application for those elements
of the HNG-X System migrated to Post Office Cloud) and may be as a result of:

Software defects requiring vendor issued patches;

Insecure accounts with weak or non-existent passwords;
Unnecessary services, for example, telnet or remote access;
Built in weaknesses, for example, backdoor accounts;

System misconfiguration; and

7m OO BP

Trend analysis and forecasting of potential issues.

2.1.8.2 In managing such prevailing threats and vulnerabilities, the Security Management
Service will:

A. Scan the HNG-X Service Infrastructure (including infrastructure in the SV&I Rig, the Live System
Test (LST) Rig and in the live estate, but for the avoidance of doubt excluding the Post Office
Cloud) using suitably configured vulnerability management tooling;

B. Assess the existing vulnerabilities on each element of the HNG-X Service Infrastructure (this
element of Security Management Service to be limited to the HNG-X Application for those
elements of the HNG-X System migrated to Post Office Cloud);

C. Determine the degree of risk for each vulnerability identified;

D. Contain or resolve the vulnerability by the updating of Hardware and / or Software versions (this
element of Security Management Service to be limited to Software, only, for those elements of
the HNG-X System migrated to Post Office Cloud) or by applying vendor issued service packs,
hot fixes or Software patches; and

E. In any investigation carried out by Post Office and/or by Fujitsu Services of any potential or actual
security breach or threat, Post Office and Fujitsu Services shall report to each other (or Fujitsu
Services shall report to Post Office Limited, if required by Post Office) any actual or potential
security breach or threat identified in the course of such investigation that may have a material
adverse effect upon the security of the Infrastructure. The procedures by which such threats
shall be reported and the methodology for investigating and resolving business incidents
(disputed Banking & Related Services Transactions are defined within the CCD entitled
“Reconciliation Service, Service Description" (SVM/SDM/SD/0015)) shall be as set out in the
document entitled “POA Operations Incident Management Procedure” (SVM/SDM/PRO/0018).

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 14 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003

FUJ00235003
oO Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)
2.1.9 SECURITY INCIDENT REPORTING AND PROBLEM
MANAGEMENT
2.1.9.1 The security incident reporting and problem management element of the Security

Management Service provides a number of security Incident reporting and problem
management activities defined in detail in the document entitled: “POA Operations
Incident Management Procedure” (SVM/SDM/PRO/0018). These are:

Provision of a central point of contact for all security related issues;

B. Investigation and reporting to post office of any actual or potential threats or breaches that may
have a material effect on the HNG-X services in accordance with agreed procedures; and

C. Provision of ongoing liaison with Post Office and support to the Fujitsu Services’ Security Board
as defined in the CCD entitled “Post Office HNG-X Account Information Security Policy”
(SVM/SEC/POL/0003).

2.1.10 SYSTEM SECURITY CHANGE MANAGEMENT

The system security change management element of the Security Management Service provides a
number of system security change management activities. These are:

A. Management of security compliance with agreed change processes and the assessment of the
business and security impact of incident and problem management systems including the
provision of options for resolution and containment of security and business risk; and

B. Assessment of the business and security impact of change requests and the assessment and
approval/rejection of security related operational change requests.

C. Monthly reporting on existing service changes.

2.1.11 PC] PENETRATION TESTING SERVICE

A penetration testing service will be provided as a call-off service to POL. This service will be provided to
POL annually or the test will also be conducted if significant changes occur to the infrastructure /
applications within PCI cardholder environment.

Fujitsu will organise an internal tester to conduct an infrastructure penetration test of service accessible in
the PCI cardholder environment from three external interfaces (Branch, Internet and Support). The
testing will cover both Network and Application Layers.

The test will not cover plugging directly into the cardholder environment and a scan of the hosts; as such
this test will concentrate on the compromise of services that the firewalls permit access to.

Exclusions:
e  If.an external test or support for an external test is required this will be subject to Change Control.
e Any remediation work identified as required as part of the penetration test.

e This element of Security Management Service is not provided for those elements of the HNG-X
System migrated to Post Office Cloud.

2.1.12 FILE INTEGRITY MONITORING

The file integrity monitoring service protects the integrity of personal and sensitive data within the PCI
DSS card holder data environment by checking whether the data and logs are not being altered as
required by the requirements 10.5.5 of the PCI DSS standard and critical system files. Configuration and
content files are monitored as required by requirement 11.5 of the standard.

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 15 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

File integrity monitoring solution (Tripwire) acts to alert personnel about unauthorised modification of
critical system files, configuration files or content files and the software should be configured to perform
critical file comparison at least on a weekly schedule and monitored by security operations under pro-
active monitoring. The software is configured to operate over the platform types detailed in Section 3.1
Platforms of CCD PCI Cardholder Environment (DES/SEC/ION/2006). Those platform types identified
within the table as not having file integrity monitoring deployed to them are platforms implemented using
appliances onto which file integrity monitoring (Tripwire) is not able to be deployed.

File integrity monitoring activities will be provided Monday to Friday from 09:00 to 17:30 Hrs excluding
public holidays.

For the avoidance of doubt, this element of Security Management Service is not provided for those
elements of the HNG-X System migrated to Post Office Cloud.

2.1.12.1 Configuration Management / Baseline reviews:

. The Fujitsu system architect, platform owners and Security operations resources will identify and
agree the initial scanning baseline, identifying files and folders to be scanned and the ones to be
excluded.

. The baseline will require initial reviews to be carried out on a monthly basis until the baseline is
stable and will then require quarterly reviews to be completed.

. Software, Hardware Maintenance and hosting capability in Fujitsu's Data Centre.

2.1.12.2 Weekly Scanning

Scans scheduled to run on a weekly basis on the applicable PCI platforms as detailed in the
CCD PCI Cardholder Environment DES/SEC/ION/2006.

2.1.12.3 Monitoring of Tripwire Service and Scans

A. Carry out checks to confirm that the Tripwire service is running on all the required PCI platforms,
managing any issues / events raised as part of the daily checks.

B. Provide product support to interfacing to the third party, to manage the file integrity monitoring
product tool set.

C. POA security operation will check the output of scheduled scans — review reports produced and
determine why changes occurred and raise an appropriate call for any exceptions that have been
identified that are not covered by operational change activities.

D. POA security will carry out periodic reviews of the baseline on a quarterly basis, identifying any
files/folders that should be excluded/added to the schedules and presented for discussion at the
next review session whilst including the necessary amendments to the baseline for any changes
to the PCI platforms.

E. Scans to be retained for period of 12 months and will be available for review.

2.1.12.4 Reporting

Report requirements to be agreed between POL and Fujitsu these will be produced and made available
to the Information Security Management Forum (ISMF) and Service Management Reviews (SMR).

2.1.12.5 Output from Fujitsu
Monthly reports

° Success/Failures status on reports run and remediation work
©Copyright Fujitsu Services Ltd 2006- _ FUJITSURESTRICTED (COMMERCIAL IN Ref. SVMISDM/SD/0017
2023 CONFIDENCE) Version: 9.0

Date 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 16 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

oO Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)
. Percentage of file folder exceptions
. Tripwire service availability.

2.1.13 PCl SUPPORT FOR POST OFFICE

CCN1332a introduced additional obligations on Fujitsu Services in supporting POL's PCI DSS
compliance, as follows:

2.1.13.1 For those elements of the HNG-X System not migrated to Post Office
Cloud;

Update of DES/SEC/ION/2006 PCI card holder environment on annual basis

B. Review of actual firewall configuration against SVM/SEC/STD/1985 Operational Firewall policy -
on a bi-annual basis

C. Additional review steps to be added to SVM/SEC/PRO/0009 Patch Management process to
include the ranking of vulnerabilities

D. Ongoing population of the POL provided Omniport tool to record approximately 255 task per
annum as detailed in PCI DSS Standard

E. Management of the Fujitsu Services user accounts and ensuring timely updates are loaded in to
Omniport

F. Fujitsu Services will provide resources to support POL in their controlled self-assessment annual
audit against the PCI DSS Standard.

2.1.13.2 For those elements of the HNG-X System migrated to Post Office Cloud:

A. Additional review steps to be added to SVM/SEC/PRO/0009 Patch Management process to
include the ranking of vulnerabilities

B. Ongoing population of the POL provided Omniport tool to record approximately 255 task per
annum as detailed in PCI DSS Standard

C. Management of the Fujitsu Services user accounts and ensuring timely updates are loaded in to
Omniport

D. Fujitsu Services will provide resources to support POL in their controlled self assessment annual
audit against the PCI DSS Standard.

2.1.14 SECURITY AWARENESS AND TRAINING

A programme of security awareness training, including Information Security overviews, is provided to all
new arrivals, as part of induction training. The service covers the provision of periodic awareness
activities and training including induction training, presentations and briefing notes and input to
magazines, journals and other periodicals.

The Fujitsu Services POA Security Communications Strategy details the various communication
channels that are used and the different vehicles and methods available for ensuring that key messages
regarding Information Security are effectively communicated to staff at all levels engaged in the Fujitsu
Services POA.

2.1.15 INFORMATION RETRIEVAL AND AUDIT

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 17 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

2.1.15.1 DESCRIPTION OF TERMS

“Banking Transaction Record Query” means a record query in respect of a Banking & Related
Services Transaction which the Data Reconciliation Service Host (DRSH) has reconciled or has reported
as an exception, the result or records of which are subsequently queried or disputed by Post Office or a
third party;

“Audit Record Query” means a record query that is not a Banking Transaction Record Query and which
relates to Transactions.

“APOP Voucher Query” means a record query for APOP voucher archived records;

“Old Data” Fujitsu Services is required to hold 7 years transaction records; ‘Old Data’ is no longer
available;

“Period One” means, in respect of each Transaction the period of 90 days commencing on the date of
that Transaction;

“Period Two” means, in respect of each Transaction the period commencing the day after expiry of
Period One for that Transaction, expiring on the earlier of:

A. seven (7) years in the case of Transaction records and

B. the date of completion of transfer of Post Office Data (including the record of that Transaction) in
accordance with Schedule E of the Agreement;

“Query Day” means each date against which an Audit Record Query is raised;

“New Data” means the extraction of records created on and following the 3rd January 2003 relating to
Banking & Related Services Transactions (and, in the case of Audit Record Queries relating to all
Transactions) meeting the Search Criteria, such extraction being limited to specific types of
information/data fields as follows:

A. inthe case of an Audit Record Query for Horizon transaction records - the ID for the User logged-
on, Counter Position ID, stock unit reference, Transaction ID, Transaction start time and date,
Customer Session ID, mode (e.g. serve customer), product number and quantity, and sales
value, Entry Method, State, IOP Ident, Result, Foreign Indicator; and for HNG-X transaction
records - the ID for the User logged-on, Counter Position ID, stock unit reference, Transaction ID,
Transaction start time and date, Customer Session ID, mode (e.g. serve customer), product
number and quantity, and sales value, Entry Method.

B. in the case of a Banking Transaction Record Query - Banking & Related Services Transaction ID,
Banking & Related Services Transaction type, receipt date, receipt time, the reason code (in the
case of a discrepancy) and DRSH sub-value(s) (e.g. CO Confirmation, C1 Confirmation, NB
Decline,

an ‘Event Log’ will also be produced and provided with the Audit Record Query, detailing; for Horizon
transaction records - GroupID, ID, date, User, SU, EPOSSTransaction.T and EPOSSTransaction.Ti and
for HNG-X transaction records - GroupID, ID, date, User, SU, ReportingEventID and EventDetailMsg.

“Search Criteria” means: To be specified for each individual Record Query. In the case of an Audit
Record Query of either:

A. The date or dates (not exceeding 31 consecutive days), and either of: i) CRM Token, for
Transactions performed at Counter Positions migrated to Payment and Banking Service; or ii)
PAN (or equivalent identifier), for Transactions performed at Counter Positions not yet or prior to
being migrated to Payment and Banking Service; or

B. The date or dates (not exceeding 31 consecutive days), and Branch ; or in the absence of a
Branch the full Branch postal address;

In the case of a Banking Transaction Record Query of either:

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref SVM/SDMISDIO017
2023 CONFIDENCE) Version: 9.0

Date: 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 18 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

A. Date, Branch and either of: i) CRM Token, for Transactions performed at Counter Positions
migrated to Payment and Banking Service; or ii) PAN, for Transactions performed at Counter
Positions not yet or prior to being migrated to Payment and Banking Service; or

B. Date and Branch,

Fujitsu Services shall have access (such access being restricted to properly authorised Fujitsu Services
staff) to records of each Banking & Related Services Transaction during Period One and Period Two.

2.1.15.1.1 Fujitsu Services shall carry out the data queries in accordance with the limits set out
in section 2.4.1 of this Security Management Service, Service Description.

2.1.15.1.2 Fujitsu Services’ responses to the data queries will be digitally signed and encrypted
to ensure integrity, confidentiality, and non-repudiation. Currently, such security is
managed by the use of PGP tooling for packaging the response data and Quatrix
tooling for its delivery, though such tooling may be subject to change by mutual
agreement between the Parties

2.1.15.2 Audit Workstation PCI Data Scanning

Audit Workstations (AUW) are used to extract data to support the ARQ service, functionality on the Audit
Workstations enables decryption of PAN numbers, this functionality is required to assist and support
Police investigations into fraud. AUW may store the PAN numbers in the clear, and a PCI control states
that where there is a business need to use PCI data in the clear, controls must be put in place to
periodically check that the tools used are not permanently storing the data and are cleared down of any
PCI data in the clear. Card Recon software has been deployed to periodically scan the Audit
Workstations for PCI data in the clear, scanning will be performed quarterly, and any PCI data being
found to have been stored in the clear will be cleared.

2.1.16 LITIGATION SUPPORT

2.1.16.1 Where Post Office submits an Audit Record Query in connection with litigation support, at
Post Office's request Fujitsu Services shall, in addition to conducting that query:

A. Present records of Transactions extracted by that query in, Excel or native flat file format, as
agreed between the Parties; and

B. Subject to the limits set out in section 2.4.1 analyse:
I. the appropriate Service Desk records for the date range in question; and
Il. in order to check the integrity of records of Transactions extracted by that query;

lll. request and allow the relevant employees of Fujitsu Services to prepare witness
statements of fact in relation to that query, to the extent that such statements are
reasonably required for the purpose of verifying the integrity of records provided by Audit
Record Query and are based upon the analysis and documentation referred to in this
section 2.1.16 of this Security Management Service, Service Description; and

IV. request and allow the relevant employees to attend court to give evidence in respect of the
witness statements referred to in the sub-section C III above;

C. Provided that:

V. Fujitsu Services’ obligations set out in sub-sections A and B above shall be limited, in
aggregate, to dealing with a maximum of 150 (in aggregate) Record Queries per year (on a
rolling year basis);

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref SVM/SDMISDIO017
2023 CONFIDENCE) Version: 9.0

Date: 25-Sep-2028
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 19 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

VI. Fujitsu Services’ obligations in the case of provision of witnesses referred to in sub-section
C above shall be to provide witnesses to attend court up to a maximum (for all such
attendance) of 60 days per year (on a rolling year basis).

2.1.16.2 For the avoidance of doubt the target times set out in Table 1 for dealing with Audit
Record Queries shall not apply in respect of Fujitsu Services’ obligations under sub-
section 2.1.16.1.C above.

2.1.16.3 Any information requested beyond that available by Audit Record Query and/or any
witness statements or witness attendance beyond that available in accordance with
section 2.1.16.1 of this Security Management Service, Service Description shall be
agreed on a case by case basis and shall be dealt with in accordance with the Change
Control Procedure.

2.1.16.4 Sensitive card data included in records of Banking & Related Services Transactions,
shall be extracted by record query and provided to Post Office (but, for the avoidance of
doubt, not that included in records for Transactions extracted for Audit Record Queries in
respect of any other Business Capability and Support Facility) shall be in the encrypted
form in which they are held.

2.1.16.5 The Security Management Service shall ensure reasonable access to the audit trail of
Banking & Related Services Transactions for Post Office auditors for audit purposes
which access shall be by written request and reasonable notice to Fujitsu Services.

2.1.17 Removed by CCN1660a

2.1.18 MANAGEMENT OF SECURITY RISKS

Fujitsu Services has an approved approach to the management of information security risk for POA
which is documented in POA Information Risk Management Approach.

Fujitsu Services POA is required to conduct a robust programme of risk management (incorporating risk
identification, assessment and mitigation) as a means of determining and confirming the appropriateness
of information related security controls for Programme systems and services. The risk management
programme is, on a day-to-day basis, undertaken by the Fujitsu Services POA IG staff. Although the
options for risk management (i.e. acceptance, transfer, mitigation etc.) are determined by the IG staff and
the decision taken by the appropriate Programme or Operational management team, security risk
oversight lies with the Information Security Management Review Body (ISMR), which is the highest
authority within the Fujitsu Services POA for the management of information security risks.

For the avoidance of doubt, this element of Security Management Service is limited to risks in respect of
the HNG-X Application for those elements of the HNG-X System migrated to Post Office Cloud.

2.1.19 REPORTING

2.1.19.1 Monthly Reporting

Information Governance staff provide a monthly Information Security Reporting Pack which informs the
Management Team, as an input to the Fujitsu Services POA ISMR, of progress towards 1SO27001
compliance, results of audits and current risk status. It is intended that the details contained in this report
will expand over time. This includes reports from the Operational Security Team such as a summary of

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref SVM/SDMISDIO017
2023 CONFIDENCE) Version: 9.0

Date: 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED Page No: 20 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[oe] Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

the types and numbers of incidents that may impact on the confidentiality, integrity or availability of POA
systems.

This report, together with report sub-sets contained in the service review book, is provided to the
customer on a monthly basis.

For the avoidance of doubt, this element of Security Management Service is limited to reporting in
respect of the HNG-X Application for those elements of the HNG-X System migrated to Post Office
Cloud.

2.1.19.2 Weekly Reporting

Security operations resources shall provide a weekly report to Post Office detailing the remote access
made by the Fujitsu Services support users to RDT and Live Post Office Branch counter systems.

The report will be provided by Fujitsu Services on a weekly basis and consist of the following detail:
e Summary title
« Date and time of access
« Branch code
e Node
« Command Request
« Command Result
« Post Office ServiceNow reference number (where available)
e Rig (i.e. Live or RDT Counters)

Reporting will be carried out 1 week in arrears and will be provided on the first Working Day following the
Sunday of each week. The report will be delivered in PDF format, via HORIce, and will show a week's
worth of counter access logs for the period Monday to Sunday of the preceding week.

2.2 SERVICE AVAILABILITY

The Security Management Service will be available between 09:00hrs to 17:30hrs Monday to Friday
excluding all Bank Holidays. In exceptional circumstances such as Business Continuity or in responding
to major security incidents the service will be extended as necessary to support these requirements.

2.3 SERVICE LEVELS AND REMEDIES

2.3.1 GENERAL PRINCIPLES

2.3.1.1 The performance of the Security Management Service against the Operational Level
Target (OLT) applicable in respect of the relevant Security Management Service shall be
measured and reported and success or failure against each shall be judged over the
OLT calendar month.

2.3.1.2 The values applicable to each of the Security Management Service OLTs are identified
within section 2.3.6 of this Security Management Service, Service Description.

2.3.2 SERVICE LEVEL RELIEF

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 24 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003
FUJ00235003

[2] Security Management Service: Service Description
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)

This section is not applicable to the Security Management Service.

2.3.3 RECTIFICATION PLAN
See paragraph 7.1 of Schedule C1 of the Agreement

2.3.4 SERVICE LEVELS FOR WHICH LIQUIDATED DAMAGES APPLY

There are no specific SLTs applicable to the Security Management Service for which liquidated damages
apply.

2.3.5 SERVICE LEVELS FOR WHICH NO LIQUIDATED DAMAGES
APPLY

There are no specific SLTs applicable to the Security Management Service for which liquidated damages
do not apply.

2.3.6 OPERATIONAL LEVEL AGREEMENT

Table 1 describes the OLTs applicable to the Security Management Service.

TABLE 1
(1) (2)
Banking Queries Limits on Audit Record Queries
7 Working Days Period One and Period Two
Target Subject to section 2.4.1, and applicable only in respect of Audit Record
Time Queries, 7 Working Days (for queries of 14 or less days' duration) and
14 Working Days (for queries of greater than 14 days’ duration).

2.3.7 PERFORMANCE METRICS

There are no contractual performance metrics applicable to the Security Management Service.

2.3.8 DESIGN TARGETS

There are no design targets applicable to the Security Management Service.

2.4 SERVICE LIMITS AND VOLUMETRIC'S

2.4.1 RECORD QUERIES

Table 2 defines the limits on Record Queries, including APOP Voucher Queries which Fujitsu Services
shall be obliged to complete.

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref. SVM/SDM/SD/0017
2023 CONFIDENCE) Version: 9.0
Date: 25-Sep-2023

UNCONTROLLED IF PRINTED OR

STORED OUTSIDE DIMENSIONS CONTRACT CONTROLLED Page No: 22 of 25
FUJ00235003

FUJ00235003
oO Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)
TABLE 2
(1) (2)
Limits on Banking Transaction Limits on Audit Record Queries
Record Queries
Periods One and Period One and Period Two
Two
Limits 200 per year (on a Subject to section 2.4.1, the limit per year (on a rolling year basis) shall
rolling year basis) be the first of the following to be reached; (i) 720 Audit Record Queries
with no more than & APOP Voucher Queries or; (ii) 15,000 Query Days; APOP Voucher
24 in any calendar ‘Queries being limited to 50 per year (on a rolling year basis)
th
mont The limit per calendar month, allowing a ‘burst rate’ of 14% shall be the
first of the following to be reached, of which not more than 10 shall be
APOP Voucher Queries: (i) 100 Audit Record Queries, or (ii) 2100 Query
Days subject to the constraints of the agreed annual limits above.

2.4.1.1 The limits set out in column 1 in Table 2 above and the provisions of this section 2.4.1 of
this Security Management Service, Service Description shall apply in connection with the
application of those limits.

2.4.1.2 The limits set out set out in the column 2 in Table 2 above and the provisions of this
section 2.4.1 of this Security Management Service, Service Description shall apply in
connection with the application of those limits with effect from the date of commencement
of HNG-X Project Workstream X4 (HNG-X Application Roll Out).

2.4.1.3 For the purpose of applying the limits in column 2 in Table 2 above from the date of
commencement of HNG-X Project Workstream X4 (HNG-X Application Roll Out) the
number of queries equivalent to Audit Record Queries (and associated Query Days) that
were carried out in the period up to 12 months prior to that date shall be included in
calculating whether the annual limit has been reached (on a rolling year basis).

2.4.1.4 For the purpose of applying the limits in column 2 in Table 2 to the month in which the
HNG-X Project Workstream X4 (HNG-X Application Roll Out) commences, the Audit
Record Queries carried out since the commencement of that calendar month shall count
towards the limits of Audit Record Queries for that month

2.4.1.5 Where:

D. A new Audit Record Query which is received by Fujitsu Services or where Post Office requires
analysis of an existing Audit Record Query; and

£. Amember of Fujitsu Services’ personnel is needed to deal with that new or existing Audit Record
Query; but

F. That person is unavailable due to his or her attendance at court or other proceedings in
connection with an Audit Record Query.

2.4.1.6 The target times specified in column 2 to Table 1 shall not apply to that new or existing
Audit Record Query which the Security Management Service shall instead deal with as
soon as reasonably practicable.

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref. SVM/SDM/SD/0017
2023 CONFIDENCE) Version: 9.0
Date: 25-Sep-2023

UNCONTROLLED IF PRINTED OR

STORED OUTSIDE DIMENSIONS CONTRACT CONTROLLED PageNo: 23 of 25
FUJ00235003

FUJ00235003
oO Security Management Service: Service Description ~
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)
2.4.1.7 For the avoidance of doubt, the limits set out in column 1 to Table 2 in respect of Banking

Transaction Record Queries shall not apply in respect of reconciliation incident
management and settlement reporting carried out as a function of the DRSH.

2.4.1.8 Post Office may at any time on three (3) months’ written notice vary the aggregate limits
of Audit Record Queries which Fujitsu Services is required to carry out as specified in
column 2 in Table 2, between:

The limits specified in Table 2; and

B. The following substitutes for those limits (applicable on the same basis): 1020 Audit Record
Queries or 21250 Query Days per year on a rolling year basis, and a maximum, allowing a ‘burst
rate’ of 14%, of 142 Audit Record Queries or 2975 Query Days per calendar month;

and between:
A. The substitute limits set out above;
and

B. The following substitutes for those limits (applicable on the same basis): 1500 Audit Record
Queries or 31250 Query Days per year on a rolling year basis, and a maximum, allowing a ‘burst
rate’ of 14%, of 210 Audit Record Queries or 4375 Query Days per calendar month.

2.4.1.9 Post Office shall submit Banking Transaction Record Queries to the Security
Management Service.

2.5 ASSETS AND LICENCES

2.5.1 ASSETS

There are no assets associated with the Security Management Service.

2.5.2 LICENSES

The Security Management Service will ensure that all third party software licences from time to time
required by Fujitsu Services to provide the Security Management Service are maintained to ensure they
are current and valid for the version of third party software being used at the time. Where a licence or its
associated support and maintenance is due to expire, and Fujitsu Services determine that renewal is
required, the Security Management Service will ensure that the appropriate renewal process, as defined
by the appropriate software vendor or licensor, is completed and a new licence is concluded prior to the
expiry date to ensure continuity of the service.

2.6 CHARGES

2.6.1 OPERATIONAL FIXED CHARGES

See Schedule D1 of the Agreement.

2.6.2 OPERATIONAL VARIABLE CHARGE

The Security Management Service operational variable charge is calculated against the number of
Branches at a price per Branch as defined in Schedule D1 of the Agreement.

©Copyright Fujitsu Services Ltd 2006- __ FUJITSU RESTRICTED (COMMERCIAL IN Ref SVMISDM/SDIO017
2023 CONFIDENCE) Version: 9.0

Date’ 25-Sep-2023
UNCONTROLLED IF PRINTED OR CONTRACT CONTROLLED PageNo: 24 of 25

STORED OUTSIDE DIMENSIONS.
FUJ00235003

FUJ00235003
oO Security Management Service: Service Description
FUJITSU FUJITSU RESTRICTED (COMMERCIAL IN
CONFIDENCE)
2.6.3 ADDITIONAL OPERATIONAL VARIABLE CHARGE
2.6.3.1 The additional operational variable charge applicable to the Security Management

Service is applicable to the number of Audit Record Queries logged as defined in section
2.4.1 of this Security Management Service, Service Description.

2.6.3.2 Fujitsu Services’ charges in respect of dealing with any Audit Record Queries up to the
limits set out in section 2.4.1.2 shall be as specified in Schedule D1 of the Agreement.

2.7 DEPENDENCIES AND INTERFACES WITH OTHER
OPERATIONAL SERVICES

Any changes agreed between Post Office and Fujitsu Services to the scope or availability of the Security
Management Service and/or any of the other Operational Services will be agreed in accordance with the
Change Control Procedure. As at the Amendment Date, this Security Management Service interfaces
with all of the Operational Services.

2.8 POST OFFICE DEPENDENCIES AND RESPONSIBILITIES

In addition to the generic Post Office responsibilities set out in Schedule A5 of the Agreement, Post Office
shall comply with section 2.4.1.8 of this Security Management Service, Service Description.

2.9 BUSINESS CONTINUITY

There are business continuity arrangements set up for the Security Management Service. The facilities
are located at a Fujitsu Services location in Stevenage and provide a complete back up service to the
Live Operation.

2.10 DOCUMENTATION SET SUPPORTING THE SERVICE

See the document set listed at section 0.4 of this Security Management Service, Service Description.
Should any elements of the Security Management Service be changed following agreement with Post
Office, Fujitsu Services will ensure these documents are also reviewed and amended where necessary in
line with changes agreed.

©Copyright Fujitsu Services Ltd 2006- FUJITSU RESTRICTED (COMMERCIAL IN Ref. SVM/SDM/SD/0017
2023 CONFIDENCE) Version: 9.0
Date: 25-Sep-2023

UNCONTROLLED IF PRINTED OR

STORED OUTSIDE DIMENSIONS CONTRACT CONTROLLED Page No: 25 of 25