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 ...

Even if you're cautious, there's always a chance that a virus could sneak onto your PC. Sure, Windows does have built-in security to block malware, but all it takes is one wrong click. Maybe it's a ...

Forbes contributors publish independent expert analyses and insights. Hackers are a busy bunch, with more than 300 million computers hacked every year — and there's a dizzying range of ways in which a ...

Add Yahoo as a preferred source to see more of our stories on Google. Nataliia Hruts / iStock / Getty Images Plus Virus removal tools can be standalone one-time scanners or built into full antivirus ...

After 33 years, Bernardo Quintero decided it was time to find the person who changed his life — the anonymous programmer who created a computer virus that had infected his university decades earlier.