Worm

This week's Word of the Week is worm.

Worm

In information security, a worm is a self-replicating virus that does not alter files but resides in active memory and duplicates itself. Worms use parts of an operating system that are automatic and usually invisible to the user. It is common for worms to be noticed only when their uncontrolled replication consumes system resources, slowing or halting other tasks.

Need a question answered about worms or other malware? Visit searchSecurity's Ask the Expert feature and submit your question to our malware expert, Robert Vibert.


This was first published in July 2001

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