Firewalls scan data sent to your computer for malware and attempt to block files or other data they deem suspicious. Like ...

From viruses to spyware, we break down the key differences so you know exactly what you're dealing with.

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 ...

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