Mapped to NIST 800-171 Requirement: 3.4.9
CMMC Assessment Objective: CM.L2-3.4.9[f]
What This Objective Means
This objective is the final confirmation step in the CM.L2-3.4.9 sequence. It asks: Have you actually put your documented integrity protection measures into practice?
It’s not enough to say you will protect integrity—you must demonstrate that your systems are actively doing so. This includes:
• Tools that detect unauthorized file changes
• Processes that prevent unauthorized data alteration
• Logs that track integrity enforcement activities
• Access restrictions that limit who can modify critical data or configurations
In short: if you say you protect system integrity, you need to prove it.
Why It Matters
System integrity means confidence in the accuracy and trustworthiness of your data and configurations. If your integrity protections aren’t working:
• You can’t trust your logs, settings, or audit results
• CUI could be silently altered or corrupted
• Threat actors could tamper with controls to hide their presence
• Your compliance posture could be invalidated—even if everything looks fine on paper
This objective ensures your defenses are real and working.
How to Implement It
1. Activate Integrity Monitoring Tools
• Deploy and configure File Integrity Monitoring (FIM)
• Use tools that detect unauthorized configuration changes (e.g., registry settings, permissions, startup scripts)
2. Restrict System-Level Modifications
• Remove unnecessary admin rights
• Require multi-person approval for sensitive changes (e.g., firewall rules, encryption settings)
3. Automate Detection and Response
• Alert on unauthorized changes via SIEM or endpoint security tools
• Configure automatic ticketing or remediation workflows when integrity issues are detected
4. Test and Audit Enforcement
• Simulate unauthorized modifications to verify alerts/logs are generated
• Conduct routine reviews of system integrity baselines
5. Review and Maintain Documentation
• Update your SSP and technical documentation to reflect actual tools, settings, and coverage
Evidence the Assessor Will Look For
• Reports from FIM or configuration monitoring tools showing active enforcement
• Screenshots of alert settings and triggered events tied to integrity violations
• Access control settings limiting who can change critical configurations
• Ticket or incident logs tied to unauthorized or suspicious integrity issues
• Documentation that aligns real-world controls with your policy
Common Gaps
• Controls are documented but not deployed
• Monitoring tools are in place but not configured to alert
• Access permissions allow broad modification rights
• Evidence is missing or outdated, making enforcement hard to prove
How Cuick Trac Helps
Cuick Trac supports this requirement by:
• Deploying and managing integrity monitoring across all enclave systems
• Locking down configurations and sensitive data from unauthorized changes
• Providing alerts and logs when system integrity is at risk
• Helping maintain up-to-date documentation to prove enforcement
• Offering audit-ready validation that integrity controls are not just planned—they’re live
With Cuick Trac, your system integrity protections are always on—and always provable.
Final CTA
Don’t just define your security—demonstrate it.
Schedule a Cuick Trac demo and validate your system integrity protections are active, enforced, and audit-ready.