Two zero-day flaws in Microsoft Defender, the antivirus engine built into every Windows installation, are already being ...

Microsoft deleted an official Windows 11 blog that claimed users no longer needed third-party antivirus software like McAfee ...

Federal civilian agencies across the United States face a two-week sprint to fix two Microsoft Defender vulnerabilities that ...

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by ...

Cybercriminals abuse trusted Intel driver to gain kernel access and shut down Windows Defender, enabling undetected malware ...

Microsoft MDASH, the 100-agent agentic AI security system, entered expanded preview at Build 2026 with native Defender Portal ...

Microsoft fixed a Defender false positive that flagged legitimate DigiCert certificates as malware, disrupting Windows trust stores for some IT teams.

Microsoft Defender (previously Windows Defender) has been a part of the Windows operating system since the early 2000s, with Microsoft improving and iterating on it up to the present — and presumably ...

Microsoft is ending Windows 10 support for most users on October 14, 2025 and the company has been urging users to upgrade to Windows 11. But in what seems to be a tacit acknowledgment that a lot of ...

Microsoft claims Windows Defender is all the protection you need. I've been testing antivirus software for decades, and the evidence—not to mention the threats it can't protect you from—says otherwise ...

Microsoft has resolved an issue that breaks multiple Microsoft 365 Defender features using the network data reporting service after installing July's Windows Server updates. The Microsoft 365 Defender ...

Microsoft is testing a new Defender for Endpoint capability that will automatically isolate compromised endpoints to thwart ...