WHAT IS A WORM?

A program that makes copies of itself -- for example, from one disk drive to another, or by copying itself using e-mail or another transport mechanism.

WARD OFF WORMS

Aside from installing anti-virus software, Symantec suggests these tips to guard against computer worms:

•Don't open e-mail from an unknown source.

•Only open expected e-mail attachments.

•Don't automatically open e-mail attachments.

•Don't download programs from Web sites, unless you know and trust the source.

•Update your anti-virus software at least every two weeks.

Source: Symantec