Windows Defender is a high-performing antivirus program that outperforms industry standards. AV-Test's Windows antivirus list reports Windows Defender's strong performance in protection.

Microsoft has confirmed a critical vulnerability in Windows Defender that could leak file content data but advised users to do nothing—here’s why.

Phishing Protection in Windows 11 used to turn off on reboot, especially when using a PIN, but this week's security release ...

"Improper authorization of an index that contains sensitive information from a Global Files search in Windows Defender allows an authorized attacker to disclose information over a network," the ...

Microsoft published a new Defender update when it released its October 2024 Patch Tuesday (it did not release any in November.) This update package is necessary as a Windows installation image may ...