A patch Microsoft released on Wednesday to fix a zero-day vulnerability in its Defender security engine may cause Windows ...

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

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

Microsoft has patched RoguePlanet—a Defender zero-day vulnerability that lets hackers gain full access to your PC—via Windows ...

Microsoft issues an emergency fix for a Windows Defender zero-day exploited after a researcher's dispute over vulnerability disclosure.

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

Windows Defender zero-day CVE-2026-50656 — known as RoguePlanet — has been patched by Microsoft 29 days after researcher ...

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 ...

Windows Defender is the default antivirus in Windows PC, which protects the PC against various threats such as malware, viruses, and others. While Windows Defender keeps track of all its actions to ...

Microsoft has decided to re-release its Windows 11 KB5007651 after one of its updates broke the Windows Security interface. The update in question was known as the Windows Defender Security update.

Microsoft has admitted that the Windows 11 security issue, wherein Defender would wrongly display LSA protection is disabled, isn't really fixed. The company has provided the same workaround. Towards ...