Authentication management through IMU and radar

A user equipment comprising:

• an authentication system configured to perform an authentication process effective to authenticate a user of the user equipment;
• a radar system configured to provide a radar field;
• and
• a processor and a memory, coupled with the radar system, the processor configured to:
• maintain a first level state of the user equipment based on the authentication process, the first level state being an operating state of the user equipment that defines at least one of a first access state, a first level power state associated with a component of the authentication system, or a first level information state;
• determine, while in the first level state, a presence of another person other than the user based on radar data received through a radar system associated with the user equipment, the other person being at least one of an unauthenticated person, an unknown person, or an unauthorized person;
• and
• responsive to the determination of the presence of the other person, reduce the first level state of the user equipment to a low-level state, the low-level state being at least one of a low-access state, a low-power state associated with the component of the authentication system, or a low-information state.