Compliance Frameworks
CMMC vs NIST 800-171: Key Differences
Reviewed by Marcus Chen, CMMC Registered Practitioner NIST SP 800-171 provides guidance on what security controls to implement to protect Controlled Unclassified Information, while CMMC adds mandatory third-party verification that you've actually implemented them. Being NIST 800-171 compliant is not the same as being CMMC