In this ultimate how to audit guide to ISO 27001 Annex A 8.5 Secure Authentication Information, 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
- ISO 27001 Annex A 8.5 Secure Authentication Information Audit Checklist
- 1. Secure Authentication Policy Formalisation Verified
- 2. Default Credential Neutralisation Confirmed
- 3. Temporary Password Lifecycle Enforcement Validated
- 4. Secret Storage Masking and Hashing Verified
- 5. Corporate Password Manager Deployment Confirmed
- 6. Multi-Factor Authentication (MFA) Integration Validated
- 7. Secure Secret Distribution Mechanism Verified
- 8. Automated Password Complexity Enforcement Confirmed
- 9. Authentication Information Disposal Validated
- 10. Periodic Credential Compromise Monitoring Verified
ISO 27001 Annex A 8.5 Secure Authentication Information Audit Checklist
Auditing ISO 27001 Annex A 8.5 Secure Authentication Information is the technical verification of how authentication secrets like passwords and tokens are managed. The Primary Implementation Requirement is the enforcement of cryptographic hashing and vaulting, providing the Business Benefit of protecting accounts against credential-based attacks and unauthorised access.
This technical verification tool is designed for lead auditors to confirm the robust management and protection of secrets used for system access. Use this checklist to validate compliance with ISO 27001 Annex A 8.5.
1. Secure Authentication Policy Formalisation Verified
Verification Criteria: A documented policy exists defining the requirements for the creation, distribution, storage, and change of authentication information (passwords, keys, tokens).
Required Evidence: Approved “Access Control Policy” or “Password Standard” with explicit complexity and lifecycle requirements.
Pass/Fail Test: If the organisation cannot produce a formal policy mandating how authentication secrets must be managed, mark as Non-Compliant.
2. Default Credential Neutralisation Confirmed
Verification Criteria: Factory-default passwords for all systems, hardware appliances, and software packages are changed immediately upon installation.
Required Evidence: System hardening logs or configuration checklists showing the modification of “admin/password” or “root” defaults.
Pass/Fail Test: If any active network device or server is found to be accessible via factory-default credentials, mark as Non-Compliant.
3. Temporary Password Lifecycle Enforcement Validated
Verification Criteria: Temporary authentication information issued for password resets or initial onboarding is unique to the user and expires after first use.
Required Evidence: Identity Provider (IdP) settings showing “Force Password Change on Next Login” is enabled for new or reset accounts.
Pass/Fail Test: If temporary passwords do not expire upon first use or are sent via unencrypted channels (e.g. plain-text email), mark as Non-Compliant.
