EvidenceSheet
CMMC 2.0 · Audit and Accountability

AU.L2-3.3.3 Event Review

Review the set of events selected for logging and update it as the environment and threat picture change.

Source: CMMC 2.0, AU.L2-3.3.3. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open CMMC 2.0 in the compliance library.

3
artefacts
1
held by a system
2
at each review
moderate
to go live
Policy repository / GRC workspace
where the evidence lives
teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

  • Change history showing updates to auditable events · Policy repository / GRC workspace

periodic reviewEvidence produced at each review

  • Records of periodic review of the logged event set · Policy repository / GRC workspace
  • Defined review frequency and owner · Policy repository / GRC workspace

governing documentDocuments that govern the control

none for this control

First move

Start with the 1 of 3 artefacts that already live in a system (Policy repository / GRC workspace); keep the periodic reviews but log each one as a dated record with a named reviewer.

Common gaps auditors find

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.

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AU.L2-3.3.2 User Accountability · AU.L2-3.3.4 Audit Failure Alerting