In terms of IT security, a mantrap is best described by one of the following statements.
A mantrap is a spring-loaded device that it sometimes baited with fine cheeses or savory snacks, meant to ensnare and sever the spinal cord of hungry Blackhat hackers
A mantrap is a fall-away floor with large, sharpened spikes at the bottom of a pit to prevent unauthorized access to secure rooms by both humans and bears
A mantrap is a set of doors separated by a hallway and access control devices that precludes individuals from accessing one door without access control requirements being met
A mantrap is a floor with a sticky material meant to trap would-be intruders by restricting the ability of movement, allowing for IT security staff to remove intruders at a later time and humanely dispose of or release them into the wild