Cybersecurity Glossary

What is CMMC (Cybersecurity Maturity Model Certification)?

The Cybersecurity Maturity Model Certification (CMMC) is a Department of Defense framework that requires defense contractors and their subcontractors to implement and certify cybersecurity practices at specified maturity levels in order to handle controlled unclassified information (CUI) and federal contract information (FCI).

CMMC (Cybersecurity Maturity Model Certification) explained

CMMC 2.0 streamlined the original five-level model into three levels. Level 1 (Foundational) requires 17 basic cyber hygiene practices aligned with FAR 52.204-21 and allows self-assessment. Level 2 (Advanced) requires implementation of 110 practices from NIST SP 800-171 and requires third-party assessment by a CMMC Third Party Assessment Organization (C3PAO) for contracts involving prioritized acquisitions. Level 3 (Expert) adds controls from NIST SP 800-172 and requires government-led assessments. The CMMC requirement flows down through the entire defense supply chain. If a prime contractor handles CUI, their subcontractors who also access that information must achieve the appropriate CMMC level. This "flow-down" requirement means that small manufacturers, IT service providers, engineering firms, and other SMBs in the defense industrial base must invest in cybersecurity practices commensurate with the sensitivity of the information they handle. Preparation for CMMC certification involves conducting a gap assessment against the required practices, implementing necessary technical and procedural controls, documenting policies and procedures in a System Security Plan (SSP), and maintaining a Plan of Action and Milestones (POA&M) for any remaining deficiencies. The certification process itself involves a formal assessment by an authorized assessment organization.

Why It Matters

Why cmmc (cybersecurity maturity model certification) matters for your business

For SMBs in the defense supply chain, CMMC certification is becoming a prerequisite for winning and maintaining DoD contracts. Without the appropriate certification level, businesses will be ineligible to bid on contracts that require handling CUI or FCI. Given the long lead time required to implement controls and complete the assessment process, early preparation is essential. The investment in CMMC readiness provides value beyond compliance. The security practices required by CMMC align with industry best practices and significantly improve an organization's resilience against cyberattacks. For SMBs, the structured approach of NIST SP 800-171 provides a clear roadmap for building a mature security program.

How Cyber Defense Agent Helps

CMMC (Cybersecurity Maturity Model Certification) and Cyber Defense Agent

Cyber Defense Agent supports CMMC preparation by assessing your security posture against requirements that overlap with NIST SP 800-171 controls. The platform identifies gaps in areas like access control, email security, vulnerability management, and system hardening, providing a foundation for your CMMC readiness efforts and System Security Plan development.

Get your Cyber Defense Score™ in 60 seconds.

100 tools. No installation. No credit card.

Get My Cyber Defense Score™ →