ISC2 Systems Security Certified Practitioner (SSCP) Practice Question

A mantrap consists of two interlocking doors that create a small vestibule. Requiring a badge at each doorway forces people to enter one at a time, which virtually eliminates tailgating and piggybacking. Because the second door will not open until the first closes, an intruder who finds or steals a badge cannot simply follow an authorized employee inside. Log data from the badge readers on both doors continues to support audit requirements. Adding a PIN strengthens authentication but still allows someone to slip in behind an authorized user. CCTV provides evidence after the fact but does not actively prevent entry. Photographing employees on badges aids guard checks but offers no physical barrier against tailgating or the misuse of a lost card.