What Is a Worm In Cybersecurity? At BestCybersecurityNews, we help young learners and seniors learn more about cybersecurity. Computer worms pose an immediate and grave danger that can destroy files, steal information, and decrease system performance. Worms often exploit software vulnerabilities to gain entry into devices; they may arrive via emails and instant messenger (IM), P2P networks such as BitTorrent or through other methods of distribution such as DRM services like Kaspersky Lab’s AntiMalware Engine (AMI). Many worms carry payloads that attack specific businesses, stealing sensitive data. Preventing such attacks requires information risk management and education.