A worm is a form of malware (malicious software) that operates as a self-contained application and can transfer and copy itself from computer to computer. It’s this ability to operate autonomously, ...

A new computer worm targeted at users of Kazaa's popular file-swapping system infected PCs in Germany, Mexico, South Africa and the United States this weekend. Posing as popular song and movie files, ...

A computer virus is a type of malware that can replicate itself on your computer and spread to other devices. You might be infected with a virus if your computer suddenly starts running more slowly, ...