What is the purpose of a 'tailgate' prevention policy?

• A. Prevent unauthenticated entry by ensuring each person uses their own credential and reporting any bypass attempts.
• B. Allow others to follow through behind employees with no checks.
• C. Increase entry speed by disregarding credentials during peak times.
• D. Permit tailgating when accompanied by a supervisor.

Answer: (A)

Tailgate prevention is about strict access control to stop unauthorized people from slipping in behind someone with a valid credential. The goal is to ensure that every entrant is who they say they are and that any attempts to bypass security are noticed and reported. By requiring each person to use their own credential and by reporting bypass attempts, the policy creates accountability, makes it harder for an intruder to gain access, and helps maintain a verifiable record of who enters the secure area.

The other options describe scenarios that weaken security: letting others follow through with no checks removes verification; speeding entry by skipping credentials erodes the authentication step; and permitting tailgating with a supervisor still allows unauthorized access and reduces accountability.