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 ...

A week ago, the security researcher who goes by “Nightmare Eclipse” published information about RoguePlanet, a zero-day security vulnerability in Microsoft’s Defender security program. The ...

The feud between "NightmareEclipse" and Microsoft continues to hold unpleasant surprises for the Windows ecosystem. The ...

Microsoft has tackled yet another zero-day vulnerability published by a disgruntled security researcher with a vendetta ...

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

All Windows PCs come with a built-in security feature called Windows Defender Application Control (WDAC), which helps prevent unauthorized software from running by allowing only trusted applications.

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

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

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

In a proof-of-concept, a security researcher demonstrated how the Windows Security Center API can be used to block the scans by Microsoft’s built-in antivirus tool. Windows Defender can be tricked ...

To permanently remove Windows Security, use Local Group Policy Editor, Windows Registry tweaks, or the Windows Defender Remover tool. Be cautious— removal can leave your PC vulnerable. Always back up ...