What does 'unauthorized disclosure' mean in security terms?

In security terms, 'unauthorized disclosure' refers to the intentional or accidental release of classified information. This concept encompasses any situation where sensitive data is shared without proper authorization, potentially exposing it to individuals who do not have the clearance or need to know. Such disclosures can occur either deliberately—where someone intentionally shares classified information without authorization—or inadvertently, such as when a person accidentally releases protected data through careless handling or communication.

This definition emphasizes the risk associated with both intentional actions and unintentional mistakes, highlighting the importance of managing information securely to prevent unauthorized access. Understanding this term is crucial for personnel responsible for handling classified information, as it underscores their role in maintaining the confidentiality and integrity of sensitive data. Access control measures, training, and secure handling practices are essential to mitigate the risks associated with unauthorized disclosures.