What is NIDS?

A Network Intrusion Detection System (NIDS) is a security system that monitors network traffic for malicious activity or policy violations. It analyzes traffic patterns and compares them to a database of known threats. When suspicious activity is detected, the NIDS can alert administrators, log the event, or even take automated actions to block the traffic. NIDS are typically deployed at strategic points within the network to monitor traffic flowing to and from critical assets.