Family 3.3 9 requirements
Audit & Accountability.
Log everything that matters. Review what you log.
The big picture
Auditing isn't about ticking a box. The assessor will ask to see real reviews and real responses to anomalies — not just that the logs exist.
Cloud platforms generate most of these logs natively — see what your cloud handles vs what you own.
Theme 1
Logging setup.
3.3.1 — 3.3.3What gets captured, why, and keeping it under review as the system changes.
- 3.3.1 Log Everything. Turn on logging across all CUI systems. Define what to capture. Keep logs long enough to investigate. 3.3.2 Trace Every Action. Every action ties back to a named person. No shared accounts. No anonymous activity. 3.3.3 Review What You Log. Periodically review and adjust what events you're logging as threats and systems change.
Theme 2
Review and respond.
3.3.4 — 3.3.6Alerting on log failures, correlating events, and responding to what the audit reveals.
- 3.3.4 Alert When Logging Breaks. If logging stops on any system, designated personnel are alerted immediately. 3.3.5 Connect the Dots. Correlate logs from multiple sources to spot attack patterns that individual logs would miss. 3.3.6 Search and Report. Search, filter, and generate reports from audit logs on demand — not raw files, usable answers.
Theme 3
Time and protect.
3.3.7 — 3.3.9Synchronised clocks, protected log records, and tightly scoped audit-management privileges.
- 3.3.7 Sync the Clocks. All system clocks synchronized to the same authoritative time source via NTP. 3.3.8 Tamper-Proof Logs. Protect audit logs and logging tools from unauthorized access, modification, and deletion. 3.3.9 Limit Who Manages Logs. Only a designated subset of privileged users can configure or manage audit logging.