In physical security, what is a 'mantrap'?

A 'mantrap' refers to a small room that is designed with two sets of interlocking doors, typically used to control access to secure areas. The primary purpose of a mantrap is to allow one person to enter and be authenticated before the second door can be opened, thereby preventing unauthorized access and potential tailgating. This controlled access system enhances security by ensuring that individuals are verified before gaining entry to sensitive locations.

The design of a mantrap is strategic, as it can also serve to deter unauthorized persons from entering by creating a buffer zone. The two doors are interlocked, meaning that when one door is open, the other remains securely closed, enhancing security measures further. This setup is particularly effective in high-security environments, such as data centers or government facilities, where access must be strictly monitored and controlled.

Understanding the function of a mantrap is crucial in the context of physical security planning, as it represents a physical barrier that adds a layer of defense in protecting sensitive areas from unauthorized access.