NIST SP 800-171
Control 3.12.1
Periodically Assess Security Controls
CMMC-RP Certified Team
24+ Years Experience
2,500+ Clients Served
Official Requirement
Periodically assess the security controls in organizational information systems to determine if the controls are effective in their application.
What This Means in Plain English
You must regularly test whether your security controls are actually working as intended. It is not enough to have policies and tools in place -- you need to verify they are effective through testing and assessment.
How Petronella Implements This Control
Petronella Technology Group implements this control through:
- Annual security control assessment against all 110 NIST 800-171 requirements
- Internal security audits performed quarterly by the security team
- Third-party penetration testing performed annually by an independent firm
- Continuous control monitoring through Arctic Wolf SIEM and CrowdStrike Falcon
- ComplianceArmor tracking control assessment results with evidence and remediation plans
Assessment Guidance
Assessors will review security control assessment reports, verify that assessments cover all 110 controls, check that assessments are performed at least annually, and confirm that assessment findings are tracked and remediated.
Common Implementation Gaps
- No periodic security control assessment performed
- Self-assessments without independent verification
- Assessment results not documented or tracked
- No follow-up on assessment findings
- Controls assessed at implementation but never re-evaluated
Cross-Framework Mapping
| Framework | Mapped Controls |
|---|---|
| NIST SP 800-53 | CA-2 |
| HIPAA | 164.308(a)(8) - Evaluation |
| PCI DSS | Req 11 - Regularly test security systems and processes |
Need Help Implementing 3.12.1?
Our CMMC-RP certified team can assess your current compliance posture and build a remediation plan.
Schedule a Compliance Assessment