A computer virus is a malware program that, when executed, replicates by inserting copies of itself (possibly modified) into other computer programs, data files, ...

Learn about computer viruses, including what a virus is, how viruses are spread, and how to help prevent viruses on your own computer with information from ...

A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes.

Designed to relentlessly replicate, computer viruses infect your programs and files, alter the way your computer operates or stop it from working altogether.

Browse the Bitdefender Virus Encyclopedia for the latest computer viruses, virus spreading levels, damage capabilities and discovery dates.

A computer virus can cause a lot of damage. Find out about worms, computer virus history, origins, and evolution, and how to protect your computer.

An illustrated guide to the worst viruses in computer history.

A computer virus or a computer worm is a malicious software program that can self-replicate on computers or via computer networks – without you being aware  ...