Intrusion detection system

An intrusion detection system is a device or software application that monitors a network or systems for malicious activity or policy violations. Any intrusion activity or violation is typically reported either to an administrator or collected centrally using a security information and event management system. This system whose aim is to monitor and detect unauthorized access to a building. These systems are used for different purposes and in different contexts both residential and commercial. The main purpose of an intrusion alarm system is to protect from burglary, vandalism, property damage, and, of course, the security of the individuals inside the building