You are the Security Consultant advising a company on security methods. This is a highly secure location that deals with sensitive national defense related data. They are very concerned about…

Question

Options

• ANot using laptops.
• BKeeping all doors locked with a guard.
• CUsing a man-trap.
• DA sign in log.

• A
  16% (8)
• B
  6% (3)
• C
  70% (35)
• D
  8% (4)

Explanation

A man-trap (option C) is a physical security vestibule with two interlocking doors: the first door must fully close and authenticate before the second opens. This creates a holding chamber that physically prevents anyone from running out of a building with stolen equipment - the thief would have been trapped before reaching the exit.

Why the other options fall short:

• A (No laptops) is an operational workaround, not a security control, and would cripple business function in a defense environment that likely needs mobile workstations.
• B (Locked doors + guard) relies on human reaction time - a determined individual can push past a guard or rush through a door before it closes, as demonstrated by the breach itself.
• D (Sign-in log) is a detective control, not a preventive one - it records who came and went, but does nothing to stop the theft in the moment.

Memory tip: Think of a man-trap as an "airlock for people." Just as a spacecraft airlock prevents a vacuum breach by requiring one door to seal before the other opens, a man-trap seals exits against unauthorized departures. If the question mentions someone physically running out with something, the answer is almost always the man-trap - it's the only control that physically stops egress.

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