Computer viruses are the most common of computer problems. They are programs that stealthily intrude computers and bring about a variety of unwanted effects, from the mild but annoying on screen messages to the major corruption or deletion of files or systems.
This category presents sites that provide information, updates, and resources about viruses and similar malicious software. Sites that feature virus detection, scanning, healing, removal, and prevention software tools are to be listed in the separate "Antivirus" category.