An organization is reviewing its security measures and wants to enhance physical security at their data-center entrance to prevent unauthorized access caused by tailgating. Which of the following would be the MOST effective physical control?
Positioning security guards at the entrance to monitor and check identifications.
Installing a mantrap at the data-center entrance.
Implementing a fingerprint scanner for entry to the data center.
Placing highly visible warning signs about authorized access only.
A mantrap is a highly secure physical control consisting of two interlocking doors. An individual must enter the first doorway, which then closes and locks before the second door opens, allowing only one person to pass and stopping anyone from following close behind. Warning signs merely deter and cannot physically block entry. A fingerprint scanner authenticates a user but still permits someone to slip in behind the authenticated person. Security guards help, but their effectiveness depends on constant vigilance, so the control is less reliable than a properly designed mantrap.
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