worm Last modified: Friday, February 18, 2005
(1) A program or algorithm that replicates itself over a computer network and usually performs malicious actions, such as using up the computer's resources and possibly shutting the system down. Also see virus. Also see The Difference Between a Virus, Worm and Trojan Horse  in the Did You Know? section of Webopedia. (2) When used in all capital letters, WORM is an acronym for for write once, read many, an optical disk technology that allows you to write data onto a disk just once. After that, the data is permanent and can be read any number of times. Unlike CD-ROMs, there is no single standard for WORM disks, which means that they can only be read by the same type of drive that wrote them. This has hampered their acceptance, although they have found a niche market as an archival media. WORM is also called CD-R. Also see Understanding CD Burner Speeds in the Did You Know . . . ? section of Webopedia.
•E-mail this definition to a colleague• For internet.com pages about worm . Also check out the following links! eSecurity Planet  A resource for daily information on e-security targeted to IT managers. The site provides users with information from a variety of sources, including experts at security product and services firms, and the consultants who follow the security industry.	CD-ROMs Ethics Security Viruses antivirus program ARPANET bootable diskette CD-ROM COLD Content Vectoring Protocol data recovery data vaulting erasable optical disk hacker macro virus mass storage MBR optical disk phase change disk pulsing zombie Trojan horse zombie Give Us Your Feedback Shopping worm Products Compare Products,Prices and Stores Shop by Category: Sport and Outdoor 1099 Store Offers Pets 26 Store Offers Tools and Accessories 99 Store Offers Removable Media 70 Model Matches Toys 148 Store Offers