What does "compromise" mean in the context of classified information?

In the context of classified information, "compromise" specifically refers to the unauthorized access or disclosure of that information. When classified data is compromised, it indicates that individuals who are not authorized to view or handle the information have gained access to it. This can happen through various means, such as cyber attacks, insider threats, or physical breaches. The term encompasses both unauthorized access to the data and the resulting risks associated with its exposure, which can include threats to national security, loss of sensitive operational capabilities, or potential harm to individuals.

The other options present scenarios that do not capture the essence of what "compromise" entails. Loss of confidentiality does not fully express the unauthorized aspect of access. Approval of information sharing suggests a legitimate dissemination of information, and regaining access to lost information implies retrieving previously authorized data rather than addressing the unwarranted disclosure aspect. Therefore, recognizing compromise as unauthorized access or disclosure emphasizes the critical nature of safeguarding classified information.