NIDS (Network-based Intrusion Detection System)

A Network-based Intrusion Detection System (NIDS) is a security tool that monitors network traffic for suspicious or malicious activity. It analyzes data passing through a network to detect cyber threats such as hacking attempts, malware, or unauthorized access. When it identifies a potential issue, it alerts administrators so they can respond quickly. Essentially, NIDS acts like an automatic security guard for a network, constantly watching for signs of trouble and helping protect sensitive information and systems from attacks.