Which of the following is NOT a type of controlled unclassified information (CUI)?

Controlled Unclassified Information (CUI) refers to specific types of unclassified information that require safeguarding or dissemination controls consistent with applicable law, regulations, and government-wide policies. It includes several categories of sensitive information that, while not classified, still necessitate protection due to the potential impact on national security or other interests.

Top Secret information does not fall under the definition of CUI as it is classified information that requires the highest level of protection and has specific handling requirements set by the classification system used by the federal government. The classification system categorizes information into different levels: Top Secret, Secret, and Confidential, with Top Secret representing the most sensitive and requiring strict access controls and clearance levels for dissemination.

In contrast, the other categories listed—such as For Official Use Only (FOUO), Sensitive but Unclassified (SBU), and Law Enforcement Sensitive (LES)—are indeed recognized as types of CUI. These types of information are used within federal agencies and require specific handling instructions to protect them from unauthorized disclosure, but they do not reach the classification level associated with Top Secret.