Which of the following is NOT one of the six physical security countermeasures?

Citing surveillance cameras as not one of the six physical security countermeasures reflects a misunderstanding of how physical security measures are categorized. Surveillance cameras are indeed an important component of physical security as they serve to monitor and record activities in a given area, providing valuable footage for detection and deterrence of unauthorized access or criminal acts.

The six primary physical security countermeasures generally include barriers, locks, surveillance, alarms, guards, and lighting. Each of these plays a critical role in securing premises by either preventing unauthorized access, monitoring activities, or alerting personnel to security breaches. Surveillance cameras, as part of the surveillance category, help bolster the effectiveness of the other countermeasures by providing visual evidence and real-time monitoring capabilities.

Understanding these categories and how they work together is crucial for developing a comprehensive security strategy that addresses potential vulnerabilities.