In this ultimate how to audit guide to ISO 27001 Clause 5.3 Organisational Roles, Responsibilities and Authorities, you will learn directly from an ISO 27001 Lead Auditor:
- 10 Key Audit Steps
- Verification Criteria
- Required Evidence
- The Pass / Fail Test
I am Stuart Barker, the ISO 27001 Lead Auditor and author of the Ultimate ISO 27001 Toolkit.
Using over 30 years of industry experience across hundreds of audits, I’m giving you the exact templates, walkthroughs, and practical examples you need to achieve ISO 27001 certification.
Table of contents
- 1. Provision Formal Role Appointments
- 2. Formalise Security Responsibilities in Job Descriptions
- 3. Audit the Assignment of IAM Governance Roles
- 4. Review Reporting Lines to Top Management
- 5. Verify Authority for Incident Response
- 6. Evaluate Resource Allocation Authority
- 7. Audit Awareness of Security Roles
- 8. Examine Risk Owner Accountability
- 9. Revoke Obsolete Responsibilities
- 10. Inspect Communication of Authorities to Third Parties
Auditing ISO 27001 Clause 5.3 is a vital governance review that verifies the alignment of organisational power with security accountability. By auditing this control, firms satisfy the Primary Implementation Requirement of role authorization, delivering the Business Benefit of a resilient, leadership-backed Information Security Management System (ISMS).
Auditing Clause 5.3 requires a rigorous examination of the governance framework to ensure that information security roles are clearly defined, properly authorised, and effectively communicated. The following steps guide an auditor through verifying that accountability is established and that there is a direct line of sight between security performance and senior leadership.
1. Provision Formal Role Appointments
Confirm that key security roles, such as the CISO or Information Security Manager, have been formally appointed. This ensures that the individual has the explicit mandate required to operate across departmental boundaries.
- Inspect formal appointment letters or Board meeting minutes.
- Verify that the appointment includes a clear scope of authority.
- Cross-reference the appointment with the organisational chart to ensure no conflicting reporting lines.
2. Formalise Security Responsibilities in Job Descriptions
Review standard and technical job descriptions to ensure they include specific security duties. This embeds security into the employment lifecycle and establishes legal accountability for the role holder.
- Sample job descriptions for IT, HR, and DevOps roles.
- Ensure that requirements for policy compliance and incident reporting are explicitly stated.
- Check for “Secure Coding” requirements in developer-specific job descriptions.
3. Audit the Assignment of IAM Governance Roles
Examine the assignment of responsibility for Identity and Access Management (IAM). Clear authority over who can approve, modify, or revoke access is critical for maintaining the principle of least privilege.
- Identify the designated “Asset Owners” within the Asset Register.
- Verify that access requests require approval from the specific Asset Owner, not just IT.
- Check the IAM role matrix for evidence of segregation of duties.
