Microsoft has released a security patch to address a Defender zero-day vulnerability known as "RoguePlanet," disclosed after ...

The newly disclosed Windows Defender flaw, tracked as CVE-2026-50656, could let attackers escalate privileges on fully ...

Microsoft Defender offers great protection from malware -- but there are other online threats you might want to consider, too.

CISA says ransomware gangs are exploiting Microsoft Defender’s BlueHammer flaw, patched in April 2026 after zero-day reports.

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Microsoft and CISA confirm Defender zero-days exploited in the wild. Microsoft has started ...

This month’s updates help security and IT teams strengthen identity and multicloud foundations, protect data wherever it ...

Enhancing security and compliance for small to medium-size businesses has become easier as they face a growing range of ...

Do you still need third-party antivirus on your Windows PC?

Compare the best free antivirus tools for Windows 10 in 2026, including real-time malware protection, phishing defense, ransomware protection, VPN limits, ...

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 ...

Build 2026: Microsoft's MDASH exits preview with 100+ specialized threat-hunting AI agents ...