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.

In 2025, most devices feature built-in antivirus software that scans files you attempt to download, blocking anything it deems suspicious. Antivirus tools also perform automated scans to remove ...

ZDNET tested the best antivirus software on the market, with support for multiple operating systems, VPNs, and robust protection.

We explore how Windows Security and Microsoft Defender protect your Windows 11 computer and why you might want to consider an alternative. Dianna Gunn built her first WordPress website in 2008. Since ...

Marshall Gunnell is a Tokyo-based tech journalist and editor with over a decade of experience covering IT, cybersecurity and data storage. Alongside CNET, his work has appeared in ZDNET, Business ...

Surfshark is a fast, trustworthy virtual private network with thousands of servers worldwide, making it one of the best VPN ...

Many Mac users wonder if they need extra antivirus software. The answer depends on what you use your Mac for and where you’re using it from. The macOS operating system is tightly controlled and uses ...

If you’re new to using a computer or new to Microsoft, or on the flip side, very, very experienced you might be thinking: Do I really need an antivirus program for my Windows 11 computer? The short ...