Controlled Unclassified Information (CUI)

Sensitive but unclassified government information requiring safeguards.

Definition

CUI is information that law or policy requires agencies to protect without classifying it. Handling, marking, and dissemination rules follow a government-wide registry.

Why it matters

Mishandling CUI is a contract compliance failure with reporting obligations and can trigger termination.

Example

Engineering drawings marked CUI//SP-CTI must be encrypted at rest.

Related terms

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