A week ago, the security researcher who goes by “Nightmare Eclipse” published information about RoguePlanet, a zero-day ...

PCWorld reports on the ‘BlueHammer’ zero-day vulnerability that allows attackers to potentially take over Windows computers through privilege escalation. A frustrated security researcher published the ...

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Threat actors are using three publicly available proof-of-concept exploits to attack Microsoft Defender and turn the security platform's primary cleanup and protection functions against organizations ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Microsoft has confirmed three Windows security bypass zero-days. They say that good things ...

Microsoft is trying to fix the RoguePlanet zero-day vulnerability impacting Defender on Windows 11 and Windows 10.

Hackers have broken into at least one organization using Windows vulnerabilities published online by a disgruntled security researcher over the last two weeks, according to a cybersecurity firm. On ...

PCWorld highlights Smart App Control, a crucial Windows 11 security feature that screens apps through Microsoft’s cloud service to protect against malware and compromised executables. A February 2026 ...

The new Microsoft Defender for Business makes important Windows security features more available to small businesses.

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