Worm

A worm is a standalone malicious software program that self-replicates and spreads autonomously across networks without requiring human intervention or attachment to a host file. Unlike viruses, worms exploit system vulnerabilities to propagate independently, enabling them to traverse vast networks at remarkable speed. This self-propagating behavior consumes bandwidth, exhausts system resources, and can cause severe operational disruptions across entire organizations and infrastructures.

Worms are classified as a critical cybersecurity threat due to their ability to create backdoors, corrupt data, install additional malware, or launch distributed denial-of-service (DDoS) attacks. To defend against worms, organizations must implement robust vulnerability management programs, maintain up-to-date patching cycles, deploy advanced intrusion detection and prevention systems, and leverage threat intelligence to anticipate emerging worm variants before they compromise critical assets.