What does "controlled unclassified information" (CUI) refer to?

Controlled Unclassified Information (CUI) refers to information that requires protection but is not classified. This category is established by government policies to provide a uniform approach to managing sensitive but unclassified information. CUI consists of information that, while not classified, still requires certain controls and measures to prevent unauthorized disclosure, thus ensuring that it is handled appropriately to protect privacy, safety, or other interests.

This classification is vital because it helps to standardize how information is treated and shared among agencies and organizations. CUI could include a variety of sensitive information types, such as personally identifiable information (PII), proprietary information, and other data that, if disclosed improperly, could lead to harm or compromise.

The significance of understanding CUI lies in the need for compliant behavior regarding information management and dissemination, reflecting the responsibility of individuals to safeguard certain types of unclassified information even though it does not meet the criteria for classified status.