Final answer:
Inadequate measures and controls that result in the release of classified information or CUI constitute a security violation or spillage, which is a type of unauthorized disclosure.
Step-by-step explanation:
Using inappropriate measures and controls to protect classified information or Controlled Unclassified Information (CUI) constitutes a type of unauthorized disclosure known as a security violation or spillage. This might occur when handling classified documents, like those within the purview of the Central Intelligence Agency (CIA), where sensitive information may be redacted as shown in redacted CIA documents released under the Freedom of Information Act (FOIA). The unauthorized disclosure of such information due to inadequate measures can lead to serious issues and may even be considered a violation of law or Executive order, particularly when it involves important national security interests overseen by the Director of National Intelligence.