What is the term used for an ADP system where users have security clearance for the highest classification and most restrictive types of information?

The term that describes an Automatic Data Processing (ADP) system where users have security clearance for the highest classification and most restrictive types of information is known as System High Security Mode. This mode allows individuals access to systems that contain classified information at the highest levels, with the assumption that every user has the necessary clearance to access all data within the system.

In this mode, security protocols are designed to minimize the risk of information leaks or unauthorized access, as all users are vetted for the highest level of security clearance. This distinction is crucial in environments handling sensitive information, ensuring that there is a uniform standard of access control anchored on the trustworthiness of the users’ security clearances.

The other terms refer to differing levels of access and control for classified information. However, they do not encapsulate the concept of unrestricted access to the highest classification within an ADP system, making System High Security Mode the most accurate choice for this scenario.