Think twice before you click on that link—even if it was sent to you by a friend or family member. Simply put, a computer virus is a program that you did not install which often performs malicious ...

A computer virus is a type of malware that can replicate itself on your computer and spread to other devices. You might be infected with a virus if your computer suddenly starts running more slowly, ...

You surely have some idea how a computer virus works, though you may not know the details. Somehow it weasels its way into your computer, and then the computer slows way down…or it starts making ...