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.

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 ...

Security software is a real free-for-all these days. Sure a few strings might come attached — some free anti-virus software and online scanners are strictly for personal use and you might need to put ...

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 ...

You get what you pay for. That’s what they always say, right? And while that can be true for many things, antivirus software is a little different. There are reputable free antivirus solutions out ...

Antivirus is just one part of keeping your PC secure. What about backups, password storage, and software updates? Do you use a VPN? Are you monitoring the dark web for your personal data? That’s where ...

The just-released beta of Microsoft Security Essentials is a solid, free tool that protects against malware while taking up few system resources and staying out of your way as much as possible. This ...