The ultimate audit guide to ISO 27001 Clause 5.3 Organisational Roles, Responsibilities and Authorities
Table of contents
- 1. Formal Definition of Key Information Security Roles Verified
- 2. Assignment to Active Personnel Confirmed
- 3. Elimination of Role Ambiguity and Gaps Validated
- 4. Executive Mandate and Authority Alignment Verified
- 5. Communication of Responsibilities to Personnel Evidenced
- 6. Personnel Competence for Assigned Roles Validated
- 7. ISMS Process Integration Confirmed
- 8. Periodic Review of Role Relevance Verified
- 9. Performance and Accountability Enforcement Present
- 10. Reporting Lines and Board-Level Accountability Confirmed
1. Formal Definition of Key Information Security Roles Verified
Verification Criteria: Explicit security responsibilities are integrated into formal documentation such as job descriptions, a Responsibility Assignment Matrix (RACI), or a dedicated ISMS Roles and Responsibilities document.
Required Evidence: Approved Job Descriptions (JDs) for key personnel (CISO, ISM, Data Owners) and the current RACI matrix.
Pass/Fail Test: If security duties are only described as “General” or are missing from the formal JD of the Information Security Manager, mark as Non-Compliant.
2. Assignment to Active Personnel Confirmed
Verification Criteria: Every defined information security role is currently filled by a named individual who is a current employee or authorised contractor.
Required Evidence: Cross-reference of the ISMS roles list against the current HR active employee directory.
Pass/Fail Test: If a key security role (e.g., Incident Response Lead) is assigned to an individual who has left the organisation, mark as Non-Compliant.
3. Elimination of Role Ambiguity and Gaps Validated
Verification Criteria: Role definitions show no overlapping accountability that could lead to conflict, and no critical security functions are left unassigned.
Required Evidence: A gap analysis of the RACI matrix showing 100% coverage of Annex A control ownership.
Pass/Fail Test: If multiple individuals are marked as “Accountable” for the same security task without a clear hierarchy, mark as Non-Compliant.
4. Executive Mandate and Authority Alignment Verified
Verification Criteria: Individuals in key security roles possess the formal authority to enforce policies, halt insecure practices, and access necessary resources.
Required Evidence: Appointment letters signed by Top Management or board minutes delegating specific authorities to the CISO/ISM.
Pass/Fail Test: If the Information Security Manager lacks the authority to mandate security training or report directly to leadership, mark as Non-Compliant.
5. Communication of Responsibilities to Personnel Evidenced
Verification Criteria: Personnel are formally notified of their specific security obligations during onboarding or upon role change.
Required Evidence: Signed acknowledgement forms, onboarding checklists, or email records of internal briefings.
Pass/Fail Test: If an employee in a security-sensitive role claims they were never officially informed of their specific ISMS duties, mark as Non-Compliant.
6. Personnel Competence for Assigned Roles Validated
Verification Criteria: Assigned individuals possess the education, training, and experience necessary to fulfill their specific security responsibilities.
Required Evidence: Professional certifications (e.g., CISSP, CISM), training records, or CVs for the personnel listed in the ISMS roles matrix.
Pass/Fail Test: If the person responsible for technical vulnerability management has no relevant technical background or training, mark as Non-Compliant.
7. ISMS Process Integration Confirmed
Verification Criteria: Defined roles are explicitly linked to operational processes such as risk management, incident response, and internal audits.
Required Evidence: Workflow diagrams or procedure documents (e.g., Incident Response Plan) naming specific roles at each stage.
Pass/Fail Test: If the Incident Response Plan refers to “Management” generally without naming a specific role or title responsible for escalation, mark as Non-Compliant.
8. Periodic Review of Role Relevance Verified
Verification Criteria: Management reviews the adequacy of roles and responsibilities at planned intervals to reflect organisational changes.
Required Evidence: Management Review Meeting (MRM) minutes showing “ISMS Roles and Responsibilities” as a reviewed agenda item.
Pass/Fail Test: If the roles list has not been formally reviewed or updated in over 12 months despite significant business restructuring, mark as Non-Compliant.
9. Performance and Accountability Enforcement Present
Verification Criteria: A mechanism exists to address failures in fulfilling information security duties, integrated with the organisation’s disciplinary or performance management processes.
Required Evidence: Disciplinary Policy or Performance Review templates containing information security KPIs.
Pass/Fail Test: If there is no documented consequence or corrective action process for repeated negligence of security duties, mark as Non-Compliant.
10. Reporting Lines and Board-Level Accountability Confirmed
Verification Criteria: The organizational structure ensures that information security leadership has a direct reporting line to top management (the Board or Executive Team).
Required Evidence: Current High-Level Organisational Chart showing reporting paths for the CISO/Security Lead.
Pass/Fail Test: If the security lead is buried three layers deep in the IT department with no direct access to the CEO/Board for reporting ISMS performance, mark as Non-Compliant.
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