ISO 27001:2022 · Organizational controls
ISO 27001:2022 5.17: Authentication information
ISO 27001:2022 5.17 covers Authentication information. The held text names 5 evidence records for it, the first being Statement of Applicability entry for control A.5.17, showing inclusion or justified exclusion, implementation status and the risks it.... The common gap an assessor flags is Initial passwords are sent in clear text email or use a predictable pattern.
A management process is to control how authentication information is allocated and managed, and it includes telling personnel how to handle such information properly. Purpose (stated in ISO/IEC 27002:2022): ensures proper entity authentication and prevents authentication process failures. As an Annex A reference control, it is compared with the controls determined in risk treatment (6.1.3 c) and recorded in the Statement of Applicability as included or excluded, with the justification and implementation status (6.1.3 d); implementation guidance is ISO/IEC 27002:2022 5.17.
What evidence supports 5.17?
- Annex A organizational controlStatement of Applicability entry for control A.5.17, showing inclusion or justified exclusion, implementation status and the risks it treats
- Annex A organizational controlCredential issuance procedure requiring identity verification before new, replacement or temporary credentials are provided
- Annex A organizational controlEvidence that initial credentials are unique, delivered over protected channels and changed at first use
- Annex A organizational controlPassword policy and technical configuration showing length, complexity, reuse prevention, breached-password blocking and masked entry
- Annex A organizational controlRecords of vendor default credentials being changed at installation
Where this requirement comes from
This is our own statement of ISO 27001:2022 5.17, read from the copy we hold (licensed complete copy) and stated in our words, not the standard verbatim. The framework as we hold it.
Common gaps an assessor flags
- Initial passwords are sent in clear text email or use a predictable pattern
- Default vendor credentials remain on network devices or appliances
- Shared account passwords are not changed when someone who knew them leaves
- No check against known breached passwords is performed
How it maps to SOC 2
No reviewed link is held for this control.
A link is a topical overlap with a confidence and a reason. It does not establish that meeting one requirement satisfies the other, and it is not certification.