A test reveals that an individual gained entry by walking behind an authorized employee at a secured door. Which measure best defends against this infiltration method?
Expand fencing around the facility
Use sturdier doors connected to an alarm
Add cameras at entrances to record movement
Provide guidance to staff to confirm each person uses credentials
Training personnel to verify that each individual uses valid credentials when passing through a secured entry helps prevent unauthorized persons from entering behind an authorized user. Cameras and alarms monitor suspicious activity, but may not stop the act in real time. Fencing improves perimeter security, but does not address a person following another at a doorway. Heavier doors alone will not prevent close trailing.
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