Which security control is most eff ective in curtailing and preventing piggybacking or tailgating as a means of unauthorized access?
A.
Cameras
B.
Turnstiles
C.
Keys
D.
Identifi cation badges
Explanation:
Explanaition: A common and frustrating loophole in an otherwise secure access control systems can be the ability of an unauthorized person to follow through a checkpoint behind an authorized person, called piggybacking or tailgating. One solution is an airlock-style arrangement called a mantrap, in which a person opens one door and waits for it to close before the next door will open. Another system that is available is a turnstile, which can be used as a supplemental control to assist a guard or receptionist while controlling access into a protected area. Page 623.