SSCP · Question #16
Which is the last line of defense in a physical security sense?
The correct answer is A. people. In physical security, people represent the final line of defense after all technical and physical barriers have been breached or bypassed.
Question
Which is the last line of defense in a physical security sense?
Options
- Apeople
- Binterior barriers
- Cexterior barriers
- Dperimeter barriers
How the community answered
(24 responses)- A92% (22)
- B4% (1)
- C4% (1)
Why each option
In physical security, people represent the final line of defense after all technical and physical barriers have been breached or bypassed.
People, such as security guards, employees, or incident responders, are the ultimate human element required to detect, confront, or respond to an attacker once they have overcome all other physical security controls like barriers and access systems. Their presence and awareness are crucial for intervention and mitigation when automated systems fail or are evaded.
Interior barriers are designed to slow down or prevent access to specific internal areas but are not the absolute last defense.
Exterior barriers are the initial layer of physical defense, meant to deter or delay external threats from reaching the facility.
Perimeter barriers define the boundary of a protected area and are an early physical defense, not the last.
Concept tested: Physical security layers; human element in security
Topics
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