information related to any DoD program or activity employing enhanced security measures exceeding those normally required for information at the same classification level

Special Access Program

Explanation:

Based on the information provided within the question it can be said that the term that is being described is called a Special Access Program. This (like mentioned in the question) refers to security protocols that provide the user with highly classified information safeguards as well as access restrictions way more advanced than those used for regular information. Mainly used by very private corporations and the U. S. Federal Government.