Windows Defender is a capable antivirus solution built into Windows itself. Unless you’ve installed a different antivirus program on your Windows 11 or Windows 10 PC, your PC is using it right now.

Why it matters: Microsoft has released a crucial bug-fixing update to its Windows Defender antimalware application. Its arrival means that some unlucky Firefox users should now get a much smoother and ...

A Dec. 12 posting to Microsoft’s security update guide has confirmed that a Windows Defender vulnerability, rated as critical according to Microsoft itself, could have enabled an attacker who ...