What Is a Computer Virus? A computer virus is a program. Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself. The virus exists as a collection of ...

Always keep your antivirus software installed and updated, and make sure to run regular system scans to catch any lurking ...

In 2026, viruses are getting smarter. Instead of just being files, some can hide in your computer’s memory without leaving a ...