What evidence do auditors commonly ask for on AU.L2-3.3.6 Reduction & Reporting?

Tooling providing search, filter and report generation over audit records; Sample generated reports; Evidence reduction does not alter original records.

What is the most common gap auditors find on AU.L2-3.3.6?

Raw logs only, with no practical analysis capability

CMMC 2.0 · Audit and Accountability

`AU.L2-3.3.6` Reduction & Reporting

Provide audit record reduction and report generation capability that supports analysis and reporting on demand.

Source: CMMC 2.0, AU.L2-3.3.6. 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.

artefacts

held by a system

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

Sample generated reports · Policy repository / GRC workspace

periodic reviewEvidence produced at each review

Tooling providing search, filter and report generation over audit records · Policy repository / GRC workspace
Evidence reduction does not alter original records · 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

Raw logs only, with no practical analysis capability
Reporting possible only through vendor support requests
Reduction process modifies the source records

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 sheet

AU.L2-3.3.5 Audit Correlation · AU.L2-3.3.7 Time Stamps & Synchronization