- See ISO 27002:2022 Control 8.4 for more information.
- See ISO 27001:2013 Annex A 9.4.5 for more information.
What Is The Purpose of ISO 27001:2022 Annex A 8.4?
Annex A 8.4 of ISO 27001:2022 defines “source code” as the underlying code, specifications, and plans used to develop applications, programs, and processes belonging to the organisation. As well as source code access, Annex A 8.4 emphasises the importance of development tools (compilers, test environments, etc.).
The management of source code represents a unique risk for any organisation that has to store it. A business’s intellectual property, production data, and protected configuration details are all considered business critical components of source code.
In accordance with an organisation’s wider set of access controls, Annex A 8.4 is a preventative control that measures risk by establishing underlying data access principles that govern read/write access to:
- Source code
- Developmental tools
- Software libraries
Who Has Ownership of Annex A 8.4?
Source code, development tools, & commercially sensitive information such as software libraries are covered in Annex A 8.4. Therefore, ownership should be vested in the Chief Information Security Officer (or equivalent), who is responsible for the business’s overall information and data security.
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General Guidance on ISO 27001:2022 Annex A 8.4
According to ISO 27001:2022 Annex A 8.4, organisations should be able to centrally administer access to and amendments to their source code across their ICT estate with a source code management system.
Organisations are encouraged to consider access to source code along strict read/write privileges based on the nature of the source code, where it is accessed from, and who is accessing it.
Organisations seeking to control source code access should:
- Maintain published procedures for controlling access to source code.
- Access to source code based on defined business requirements on a case-by-case or user-by-user basis.
- When administering access to source code, follow a set of change management procedures (see Annex A 8.32), including proper authorisation based on access variables (user type, business case, etc.).
- Provide developers with access to source code through a series of development tools that provide a top-down view of access rights and read/write privileges.
- Create a secure space for storing program listings and read/write permissions.
- All source code-related activities, including timestamps and change-related activities, should be maintained in a concurrent audit trail.
- Digital signatures should be used for any code that is going to be published outside of the organisation.
Accompanying Annex A Controls
- ISO 27001:2022 Annex A 8.32
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What Are the Changes From ISO 27001:2013?
ISO 27001:2022 Annex A 8.4 replaces ISO 27001:2013 Annex A 9.4.5 (‘Access Control to Program Source Code’) and contains three main discrepancies in its approaches to establishing a source code management system (a concept that is absent from ISO 27001:2013 Annex A 9.4.5):
- Read/write access is subject to a strict set of business requirements.
- Providing developers with indirect access to source code through development tools and/or test environments.
- Annex A 8.32 contains newly published change management procedures that must be applied to source code access activities.
Table of All ISO 27001:2022 Annex A Controls
In the table below you’ll find more information on each individual ISO 27001:2022 Annex A Control.
ISO 27001:2022 Organisational Controls
| Annex A Control Type | ISO/IEC 27001:2022 Annex A Identifier | ISO/IEC 27001:2013 Annex A Identifier | Annex A Name |
|---|---|---|---|
| Organisational Controls | Annex A 5.1 | Annex A 5.1.1 Annex A 5.1.2 | Policies for Information Security |
| Organisational Controls | Annex A 5.2 | Annex A 6.1.1 | Information Security Roles and Responsibilities |
| Organisational Controls | Annex A 5.3 | Annex A 6.1.2 | Segregation of Duties |
| Organisational Controls | Annex A 5.4 | Annex A 7.2.1 | Management Responsibilities |
| Organisational Controls | Annex A 5.5 | Annex A 6.1.3 | Contact With Authorities |
| Organisational Controls | Annex A 5.6 | Annex A 6.1.4 | Contact With Special Interest Groups |
| Organisational Controls | Annex A 5.7 | NEW | Threat Intelligence |
| Organisational Controls | Annex A 5.8 | Annex A 6.1.5 Annex A 14.1.1 | Information Security in Project Management |
| Organisational Controls | Annex A 5.9 | Annex A 8.1.1 Annex A 8.1.2 | Inventory of Information and Other Associated Assets |
| Organisational Controls | Annex A 5.10 | Annex A 8.1.3 Annex A 8.2.3 | Acceptable Use of Information and Other Associated Assets |
| Organisational Controls | Annex A 5.11 | Annex A 8.1.4 | Return of Assets |
| Organisational Controls | Annex A 5.12 | Annex A 8.2.1 | Classification of Information |
| Organisational Controls | Annex A 5.13 | Annex A 8.2.2 | Labelling of Information |
| Organisational Controls | Annex A 5.14 | Annex A 13.2.1 Annex A 13.2.2 Annex A 13.2.3 | Information Transfer |
| Organisational Controls | Annex A 5.15 | Annex A 9.1.1 Annex A 9.1.2 | Access Control |
| Organisational Controls | Annex A 5.16 | Annex A 9.2.1 | Identity Management |
| Organisational Controls | Annex A 5.17 | Annex A 9.2.4 Annex A 9.3.1 Annex A 9.4.3 | Authentication Information |
| Organisational Controls | Annex A 5.18 | Annex A 9.2.2 Annex A 9.2.5 Annex A 9.2.6 | Access Rights |
| Organisational Controls | Annex A 5.19 | Annex A 15.1.1 | Information Security in Supplier Relationships |
| Organisational Controls | Annex A 5.20 | Annex A 15.1.2 | Addressing Information Security Within Supplier Agreements |
| Organisational Controls | Annex A 5.21 | Annex A 15.1.3 | Managing Information Security in the ICT Supply Chain |
| Organisational Controls | Annex A 5.22 | Annex A 15.2.1 Annex A 15.2.2 | Monitoring, Review and Change Management of Supplier Services |
| Organisational Controls | Annex A 5.23 | NEW | Information Security for Use of Cloud Services |
| Organisational Controls | Annex A 5.24 | Annex A 16.1.1 | Information Security Incident Management Planning and Preparation |
| Organisational Controls | Annex A 5.25 | Annex A 16.1.4 | Assessment and Decision on Information Security Events |
| Organisational Controls | Annex A 5.26 | Annex A 16.1.5 | Response to Information Security Incidents |
| Organisational Controls | Annex A 5.27 | Annex A 16.1.6 | Learning From Information Security Incidents |
| Organisational Controls | Annex A 5.28 | Annex A 16.1.7 | Collection of Evidence |
| Organisational Controls | Annex A 5.29 | Annex A 17.1.1 Annex A 17.1.2 Annex A 17.1.3 | Information Security During Disruption |
| Organisational Controls | Annex A 5.30 | NEW | ICT Readiness for Business Continuity |
| Organisational Controls | Annex A 5.31 | Annex A 18.1.1 Annex A 18.1.5 | Legal, Statutory, Regulatory and Contractual Requirements |
| Organisational Controls | Annex A 5.32 | Annex A 18.1.2 | Intellectual Property Rights |
| Organisational Controls | Annex A 5.33 | Annex A 18.1.3 | Protection of Records |
| Organisational Controls | Annex A 5.34 | Annex A 18.1.4 | Privacy and Protection of PII |
| Organisational Controls | Annex A 5.35 | Annex A 18.2.1 | Independent Review of Information Security |
| Organisational Controls | Annex A 5.36 | Annex A 18.2.2 Annex A 18.2.3 | Compliance With Policies, Rules and Standards for Information Security |
| Organisational Controls | Annex A 5.37 | Annex A 12.1.1 | Documented Operating Procedures |
ISO 27001:2022 People Controls
| Annex A Control Type | ISO/IEC 27001:2022 Annex A Identifier | ISO/IEC 27001:2013 Annex A Identifier | Annex A Name |
|---|---|---|---|
| People Controls | Annex A 6.1 | Annex A 7.1.1 | Screening |
| People Controls | Annex A 6.2 | Annex A 7.1.2 | Terms and Conditions of Employment |
| People Controls | Annex A 6.3 | Annex A 7.2.2 | Information Security Awareness, Education and Training |
| People Controls | Annex A 6.4 | Annex A 7.2.3 | Disciplinary Process |
| People Controls | Annex A 6.5 | Annex A 7.3.1 | Responsibilities After Termination or Change of Employment |
| People Controls | Annex A 6.6 | Annex A 13.2.4 | Confidentiality or Non-Disclosure Agreements |
| People Controls | Annex A 6.7 | Annex A 6.2.2 | Remote Working |
| People Controls | Annex A 6.8 | Annex A 16.1.2 Annex A 16.1.3 | Information Security Event Reporting |
ISO 27001:2022 Physical Controls
| Annex A Control Type | ISO/IEC 27001:2022 Annex A Identifier | ISO/IEC 27001:2013 Annex A Identifier | Annex A Name |
|---|---|---|---|
| Physical Controls | Annex A 7.1 | Annex A 11.1.1 | Physical Security Perimeters |
| Physical Controls | Annex A 7.2 | Annex A 11.1.2 Annex A 11.1.6 | Physical Entry |
| Physical Controls | Annex A 7.3 | Annex A 11.1.3 | Securing Offices, Rooms and Facilities |
| Physical Controls | Annex A 7.4 | NEW | Physical Security Monitoring |
| Physical Controls | Annex A 7.5 | Annex A 11.1.4 | Protecting Against Physical and Environmental Threats |
| Physical Controls | Annex A 7.6 | Annex A 11.1.5 | Working In Secure Areas |
| Physical Controls | Annex A 7.7 | Annex A 11.2.9 | Clear Desk and Clear Screen |
| Physical Controls | Annex A 7.8 | Annex A 11.2.1 | Equipment Siting and Protection |
| Physical Controls | Annex A 7.9 | Annex A 11.2.6 | Security of Assets Off-Premises |
| Physical Controls | Annex A 7.10 | Annex A 8.3.1 Annex A 8.3.2 Annex A 8.3.3 Annex A 11.2.5 | Storage Media |
| Physical Controls | Annex A 7.11 | Annex A 11.2.2 | Supporting Utilities |
| Physical Controls | Annex A 7.12 | Annex A 11.2.3 | Cabling Security |
| Physical Controls | Annex A 7.13 | Annex A 11.2.4 | Equipment Maintenance |
| Physical Controls | Annex A 7.14 | Annex A 11.2.7 | Secure Disposal or Re-Use of Equipment |
ISO 27001:2022 Technological Controls
| Annex A Control Type | ISO/IEC 27001:2022 Annex A Identifier | ISO/IEC 27001:2013 Annex A Identifier | Annex A Name |
|---|---|---|---|
| Technological Controls | Annex A 8.1 | Annex A 6.2.1 Annex A 11.2.8 | User Endpoint Devices |
| Technological Controls | Annex A 8.2 | Annex A 9.2.3 | Privileged Access Rights |
| Technological Controls | Annex A 8.3 | Annex A 9.4.1 | Information Access Restriction |
| Technological Controls | Annex A 8.4 | Annex A 9.4.5 | Access to Source Code |
| Technological Controls | Annex A 8.5 | Annex A 9.4.2 | Secure Authentication |
| Technological Controls | Annex A 8.6 | Annex A 12.1.3 | Capacity Management |
| Technological Controls | Annex A 8.7 | Annex A 12.2.1 | Protection Against Malware |
| Technological Controls | Annex A 8.8 | Annex A 12.6.1 Annex A 18.2.3 | Management of Technical Vulnerabilities |
| Technological Controls | Annex A 8.9 | NEW | Configuration Management |
| Technological Controls | Annex A 8.10 | NEW | Information Deletion |
| Technological Controls | Annex A 8.11 | NEW | Data Masking |
| Technological Controls | Annex A 8.12 | NEW | Data Leakage Prevention |
| Technological Controls | Annex A 8.13 | Annex A 12.3.1 | Information Backup |
| Technological Controls | Annex A 8.14 | Annex A 17.2.1 | Redundancy of Information Processing Facilities |
| Technological Controls | Annex A 8.15 | Annex A 12.4.1 Annex A 12.4.2 Annex A 12.4.3 | Logging |
| Technological Controls | Annex A 8.16 | NEW | Monitoring Activities |
| Technological Controls | Annex A 8.17 | Annex A 12.4.4 | Clock Synchronization |
| Technological Controls | Annex A 8.18 | Annex A 9.4.4 | Use of Privileged Utility Programs |
| Technological Controls | Annex A 8.19 | Annex A 12.5.1 Annex A 12.6.2 | Installation of Software on Operational Systems |
| Technological Controls | Annex A 8.20 | Annex A 13.1.1 | Networks Security |
| Technological Controls | Annex A 8.21 | Annex A 13.1.2 | Security of Network Services |
| Technological Controls | Annex A 8.22 | Annex A 13.1.3 | Segregation of Networks |
| Technological Controls | Annex A 8.23 | NEW | Web filtering |
| Technological Controls | Annex A 8.24 | Annex A 10.1.1 Annex A 10.1.2 | Use of Cryptography |
| Technological Controls | Annex A 8.25 | Annex A 14.2.1 | Secure Development Life Cycle |
| Technological Controls | Annex A 8.26 | Annex A 14.1.2 Annex A 14.1.3 | Application Security Requirements |
| Technological Controls | Annex A 8.27 | Annex A 14.2.5 | Secure System Architecture and Engineering Principles |
| Technological Controls | Annex A 8.28 | NEW | Secure Coding |
| Technological Controls | Annex A 8.29 | Annex A 14.2.8 Annex A 14.2.9 | Security Testing in Development and Acceptance |
| Technological Controls | Annex A 8.30 | Annex A 14.2.7 | Outsourced Development |
| Technological Controls | Annex A 8.31 | Annex A 12.1.4 Annex A 14.2.6 | Separation of Development, Test and Production Environments |
| Technological Controls | Annex A 8.32 | Annex A 12.1.2 Annex A 14.2.2 Annex A 14.2.3 Annex A 14.2.4 | Change Management |
| Technological Controls | Annex A 8.33 | Annex A 14.3.1 | Test Information |
| Technological Controls | Annex A 8.34 | Annex A 12.7.1 | Protection of Information Systems During Audit Testing |
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