Which term describes a violation of the security policy leading to unauthorized disclosure?

The term that accurately describes a violation of the security policy leading to unauthorized disclosure is "Compromise." In the context of COMSEC (Communications Security), a compromise refers specifically to an event in which information is disclosed to unauthorized individuals or entities. This could mean that sensitive or classified information has been exposed in a way that violates established security protocols, breaking the chain of confidentiality that is vital for safeguarding data.

The nature of a compromise highlights the breach of trust and the potential risk it poses to the integrity of the information system. It does not simply refer to an incident or a security breach in general, but it pinpoints the act of allowing unauthorized access to secured information, which is critical in maintaining operational security. Understanding this term is essential as it helps individuals and organizations identify and respond to vulnerabilities within their security framework effectively.