How to prevent a computer worm

A computer worm is a software program that is designed to copy itself from one computer to another, without human interaction. Unlike a computer virus, a worm can copy itself automatically. To help prevent getting infected by computer worms, follow these six steps:
1.Keep your operating system up-to-date with latest security updates
2.Keep your firewall turned on at all times.
3.Keep your antivirus software updated
4.Use strong passwords
5.Consider disabling the AutoPlay feature in your computer
6.Use caution before you open e-mails attachments, click links in e-mail, or before you accept file transfers.
Never open e-mail attachments from someone you don't know.