What is the primary function of an alarm system in physical security?

The primary function of an alarm system in physical security is to alert personnel of unauthorized access. An alarm system is designed to detect breaches in security, such as forced entry or the presence of an intruder in a secured area. When an alarm is triggered, it alerts security personnel or stakeholders, enabling a prompt response to the potential threat.

This function is crucial in mitigating risks, securing property, and ensuring the safety of individuals within the premises. While other purposes, such as deterrence and monitoring, are also important aspects of a comprehensive security plan, the core role of an alarm system is its ability to notify the appropriate parties when an unauthorized access event occurs. In this way, it serves as an essential component for maintaining an effective physical security posture.