What distinguishes "Top Secret" information from other classification levels?

The distinction of "Top Secret" information lies primarily in the consequence of its unauthorized disclosure. Specifically, if Top Secret information is disclosed, it would cause exceptionally grave damage to national security. This level of classification is applied to information that, if exposed, could result in severe repercussions for the United States, including threats to national defense or foreign relations.

In the classification system, information is categorized based on the potential impact of unauthorized release. Top Secret represents the highest level of sensitivity and is reserved for information that requires the utmost protection and stringent handling to prevent serious harm to national interests.