10.5.1 Audit log retention 12 months
Audit log history is retained for at least 12 months, with at least the most recent three months immediately available for analysis.
5
artefacts
1
held by a system
2
at each review
hard
to go live
Policy repository / GRC workspace
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
- Hot storage configuration for last 3 months · Cloud console / configuration management
periodic reviewEvidence produced at each review
- Cold storage location and accessibility evidence · Cloud console / configuration management
- Sample log restoration test results · Backup / DR tooling
governing documentDocuments that govern the control
- SIEM retention policy configuration · Policy repository / GRC workspace
- Retention policy document · Policy repository / GRC workspace
First move
Mostly documents and reviews. Pull the 1 system-held artefact from your Cloud console / configuration management on a schedule; put the documents under version control with an owner and review date, and log each review as a dated record with a named reviewer.
Common gaps auditors find
- Retention below 12 months
- Cold storage hard to access
- No restore tests
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 sheet10.4.3 Exceptions and anomalies addressed · 10.6.1 Time synchronization in use