What does antivirus software do, and how does it work? Here's what you need to know about essential tools for keeping you safe online and beyond.

Antivirus software protects your computer by scanning every file you download for viruses and other malware. Most of the time, you’ll want to leave your antivirus program running as-is.

When Microsoft Defender is mentioned, most users think of the antivirus software included in Windows (currently called Windows Security). On the one hand, this is correct, as the antivirus engine ...

ZDNET tested the best antivirus software on the market that supports multiple operating systems, VPNS, and robust protection.

Antivirus software is an essential piece of protection on any Windows PC. On an internet where malware is only becoming more and more profitable for organized crime, you don’t want to be without ...

How to tell if there's spyware or a virus on your computer with seven warning signs your device is infected and what to do ...

Do You Need Antivirus Software for Windows 11? We explore how Windows Security and Microsoft Defender protect your Windows 11 computer and why you might want to consider an alternative.

This is an important one. Some free antivirus software programs claim they will offer real-time monitoring when you use them. This means that as you scroll on your phone or computer, or download ...

The best antivirus for gaming protects your PC but does so with as little impact to your game performance as possible. The best for that is the software already installed on your PC right now ...

The Best Mac Antivirus Software for 2025 Despite what you may have heard, your Apple computer isn't immune to malware. We've tested the top programs to identify the best antivirus protection for Macs.

What is antivirus software? Yui Mok - PA Images/GettyImages Antivirus software (or anti-malware software) is a tool that looks for sneaky applications that don’t belong on your PC (or smartphone).

Antivirus software protects your computer by scanning every file you download for viruses and other malware. Most of the time, you’ll want to leave your antivirus program running as-is.