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.

Having an antivirus app on Windows is a must. While Windows Defender is certainly an option, Consumer Reports rates these ...

Add Yahoo as a preferred source to see more of our stories on Google. Both Avast and Bitdefender originally built their reputations on their high-quality, free solutions. Even though they've both ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Avira is a cybersecurity company known for its freemium ...

Over 300,000 new types of ransomware and other malicious software are discovered daily, according to the IT security research institute AV-TEST. Computer viruses can slow your devices, create a slew ...