CP-13 Alternative Security Mechanisms. Employ [organization-defined] for satisfying [organization-defined] when the primary means of implementing the security function is unavailable or compromised
Alternative Security Mechanisms. Employ [organization-defined] for satisfying [organization-defined] when the primary means of implementing the security function is unavailable or compromised.
5
artefacts
0
held by a system
3
at each review
hard
to go live
Document repository
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
none for this control
periodic reviewEvidence produced at each review
- Evidence the alternative mechanism satisfies the same security requirement, not merely a related one · Document repository
- Deployment or standby evidence showing the alternative is available before it is needed · Source control / CI pipeline
- Test record of operating under the alternative mechanism · Document repository
governing documentDocuments that govern the control
- Identification of the primary security functions in scope and the alternative mechanism defined for each · Policy repository / GRC workspace
- Trigger and authority for switching when the primary is unavailable or compromised · Document repository
First move
This control is evidenced by people and documents, not systems. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date. Do not try to automate it.
Common gaps auditors find
- Alternative shares a dependency with the primary, such as the same directory or key infrastructure
- Alternative provides weaker assurance than the primary with no risk acceptance recorded
- Never exercised, so its capacity and performance under real load are unknown
Do this for your whole sheet
Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.
Build my evidence sheetCP-12 Safe Mode. When [organization-defined] are detected, enter a safe mode of operation with [organization-defined] · IA-1 Policy and procedures for identification and authentication