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Training Camp • Cybersecurity Glossary
Controlled Unclassified Information (CUI) is sensitive but unclassified U.S. government data protected under NIST SP 800-171 and the CUI program.
Controlled Unclassified Information (CUI) Definition: Controlled Unclassified Information (CUI) is sensitive but unclassified U.S. government data protected under NIST SP 800-171 and the CUI program.
Controlled Unclassified Information (CUI) is U.S. government information that requires safeguarding or dissemination controls under law, regulation, or government-wide policy but is not classified. The CUI program is overseen by NARA, and contractors handling CUI in nonfederal systems must implement the security requirements in NIST SP 800-171. Proper marking, access control, and protection of CUI are central to compliance regimes such as CMMC for the defense industrial base.
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