In addition to access control systems, what other physical security measure is commonly used?

Surveillance cameras are a widely utilized physical security measure in addition to access control systems. They play a crucial role in monitoring and recording activities within a facility, which helps to deter unauthorized access, identify potential security breaches, and provide evidence in the event of an incident. The presence of surveillance cameras can serve as a visual deterrent, encouraging individuals to adhere to security protocols and be mindful of their actions.

In contrast, portable workstations and teleconferencing tools primarily serve operational and administrative functions rather than enhancing physical security. Document shredders, while important for safeguarding sensitive information, do not contribute to physical monitoring or control of access, which is the primary focus of the question. Therefore, surveillance cameras are integral to a comprehensive physical security strategy, complementing access control systems by actively observing and documenting the environment.