Microsoft Defender isn't bad, but it's not enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free antivirus apps we've tested.

Add Yahoo as a preferred source to see more of our stories on Google. Ever hear the phrase “spread like a virus”? We quite literally witnessed it the past few years. Like biological viruses, computer ...

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 ...

If your PC struggles to handle modern software, you'll fare much better with these lighterweight alternatives.

A serious computer virus that has infected millions worldwide has taken a stab at the UA, but security officials are working to combat the virus and educate the university community on how to protect ...

Computer viruses can invade your system without you noticing, disrupting its operation and even stealing your data. To protect your device, it's important to know how to recognize signs of infection, ...

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 need antivirus software. Attacks on your PC keep getting more sophisticated, thanks to the help of AI. Even the tech-savvy and cautious can get tricked into exposing themselves to malware, spyware ...

Can malware kill? It can cause massive damages that on a dramatic day might lead you to say something like, “This %*^@# is killing me!” Computer viruses can also induce those feelings, because you ...

And then came Brain. Discovered in the first weeks of 1986, it was the first PC virus to widely circulate in the wild. Distributed via 5.25-inch floppy diskettes, Brain's spread was extremely slow by ...

Antivirus company Sophos’s virus researchers reported the first ever virus to infect the Microsoft Pocket PC operating system. The Duts virus (W32/Duts-A) is able to infect PDAs running the Pocket PC ...