What is the term for accidental disclosure of classified information?

The term for the accidental disclosure of classified information is best described by the concept of unauthorized dissemination. This refers to the release or sharing of classified information without proper authorization, whether intentional or accidental. In the context of classified materials, any information that is shared without the appropriate level of clearance is considered unauthorized, which can lead to potential security risks and compromise sensitive information.

The other terms do not accurately capture the nature of accidental disclosure. Authorized disclosure pertains to sharing classified information with individuals who have the proper clearance and need to know, which is the opposite of accidental disclosure. Secure communication relates to methods and practices that protect sensitive data during transmission, rather than the act of disclosing it wrongly. Controlled release typically refers to a planned and authorized process for sharing classified information under specific conditions rather than an unintended breach. Thus, unauthorized dissemination is the most fitting term for accidental disclosures regarding classified information.