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Question

Difficulty: EasyPhysical Security Controls

A company needs to prevent unauthorized individuals from following authorized employees into a highly secure server room, a practice known as tailgating. Which of the following physical security controls is specifically designed to enforce single-person entry at an access point?

  1. Access control vestibule (mantrap)Answer
  2. B
    Cable lock
  3. C
    Privacy filter
  4. D
    Bollards

Answer

The access control vestibule (mantrap) is specifically engineered to prevent tailgating by utilizing interlocking doors that permit only one authenticated individual through at a time.
An access control vestibule (mantrap) consists of a small room with two interlocking doors. Opening one door automatically locks the other, requiring authentication before permitting entry into the secure area. This mechanism directly eliminates tailgating and piggybacking.

Step-by-Step Solution

1
Identify the threat identified in the scenario.
The primary threat is tailgating (unauthorized personnel following an authorized person into a secure room).
Selecting an effective physical control requires matching the specific threat to the control's intended design.
2
Evaluate the capabilities of physical entry controls.
An access control vestibule (mantrap) contains two interlocking doors where the second door will not unlock until the first door closes and authentication is validated.
This physical design enforces single-person entry and prevents unauthorized followers from entering.

Key Concept

Physical Security Access Controls - Preventing Tailgating
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Topics

Physical Security Controls

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