What does worm mean in ICT?

In Information and Communication Technology (ICT), a worm is a type of malicious software (malware) that replicates itself to spread to other computers, often without any user intervention. Unlike viruses, worms do not need to attach themselves to a host program and can exploit network vulnerabilities to propagate. They can consume bandwidth, disrupt network services, and may carry out harmful actions on infected systems. Worms are typically designed to spread quickly and can lead to significant security breaches and data loss.