Annex A 8.5
Secure authentication
Secure authentication technologies and procedures are implemented based on access restrictions and the access control policy.
What an assessor looks for
Show the authentication mechanisms in use and where stronger authentication is required. Every exception should be documented with a rationale and a review date.
Where it usually fails
Legacy systems that cannot support modern authentication remain in use with no compensating control and no plan.
Classification
- Theme
- A.8 Technological
- Control type
- Preventive
- Security properties
- Confidentiality, Integrity
- Cybersecurity concepts
- Protect
- ISO 27001:2013 equivalent
- 9.4.2
Control number and title are identifiers used as references. The classification above is our own analysis, aligned to the shape of the ISO 27002 attribute model rather than reproduced from it, and no text from the standard appears on this page. Last reviewed 2026-08-03.
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