Since 1987, when a virus infected ARPANET, a large network used by the Defense Department and many universities, many antivirus programs have become available. These programs periodically check your computer system for the best-known types of viruses.

Some people distinguish between general viruses and worms. A worm is a special type of virus that can replicate itself and use memory, but cannot attach itself to other programs.

Also see The Difference Between a Virus, Worm and Trojan Horse  in the Did You Know? section of Webopedia.

AT&T Tech Support 360 - Save Time and Money for your Small Business with 24/7 AT&T Tech Support.

AT&T Digital Media Solutions - Stream your content to the TV, Web, & computer with AT&T's Solutions.

The CERT/CC Home Page 
Learn about the organizations mission and get up-to-date security information, security alerts and training information.

Downloadable virus scanning software 
Provides links to downloadable software for virus scanning. Included are VirusScan and TBAV for Windows, and F-PROT.

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.

Symantec Antivirus Research Center 
The Symantec Antivirus Research Center offers a wealth of information on viruses. It begins with a list of hot topics (new virus and virus products), and also provides links to virus alerts, an information database, references, submit virus samples, Macintosh viruses, and Symantec virus product information.

CIAC Virus Myth and Hoaxes Site
Created as a public service by the Computer Incident Advisory Capability (CIAC) to educate people about virus myths and hoaxes.

Computer Virus Myths
Contains information about the newest hoaxes as well as background on computer viruses and myths, opinions and editorials, and recommended books and Web sites.

Hartmann's In-The-Wild Macro Virus List
Describes macro viruses reported by anti-virus software manufacturers.

SecurityTracker.com
Information on the latest security vulnerabilities, free SecurityTracker Alerts, and customized vulnerability notification services.

Virus Info Database
This is Symantec's Virus Info Database. You can search for a virus by name or refer to general virus information.

McAfee virus information home page
McAfee Associates specializes in network and security management. This page displays company news and product information, as well as links to virus descriptions and online technical support.

Open Networks Today
Networking news moves at a fast pace, and Open Networks Today lets you keep up with it. Open Networks Today offers its readers the ability to control how news is presented through customizing content filters, discussions, and news feed links.

Webopedia's "Did You Know... Preventative Maintenance Tips for Your PC"
The following tips will serve as a basic guideline to keep your PC maintained to run efficiently, increase component lifespan and also will help lessen the likelihood of PC failure.