What is meant by "perimeter security"?

Perimeter security refers to the comprehensive set of measures designed to safeguard the outer boundaries of a facility, which includes both physical and electronic methods to deter, detect, and respond to unauthorized access or breaches. This encompasses various elements such as fences, gates, surveillance cameras, motion sensors, and lighting systems strategically placed around the premises to create a secure environment. The primary aim is to establish a strong first line of defense against potential intruders or threats before they can reach more sensitive or critical areas within the facility.

The importance of perimeter security lies in its role as a deterrent as well as a reactive measure. By making unauthorized entry more difficult, perimeter security not only protects assets but also ensures the safety and security of personnel within the facility. Effective perimeter security systems can help in early detection of any suspicious activities, allowing for timely interventions.

In contrast, the other options primarily focus on different aspects of security that are internal or procedural rather than external boundary protections. These include safeguarding documents, training personnel, and communication strategies, which, while important, do not directly pertain to the core definition and function of perimeter security.