What is the primary requirement for CUI Assets within CMMC?

The primary requirement for Controlled Unclassified Information (CUI) assets within the Cybersecurity Maturity Model Certification (CMMC) framework is that they should be documented in the asset inventory and network diagram. This documentation is essential because it ensures that all CUI assets are identified, tracked, and adequately protected against unauthorized access or breaches. Proper asset management is crucial for maintaining the integrity, availability, and confidentiality of sensitive information as part of an organization's security posture.

An accurate inventory helps organizations identify vulnerabilities, assess risks, and implement appropriate security controls. By having a clear mapping of assets within a network, organizations can better understand how data flows and where potential security gaps might exist. This understanding is vital for achieving compliance with CMMC requirements, which emphasize the importance of safeguarding sensitive information within the defense supply chain.

Documenting CUI in asset inventories also supports operational continuity and incident response efforts by providing a comprehensive view of the technological landscape. This documentation plays a role in establishing accountability and ensuring that all relevant personnel are aware of what information and assets require protection.