Threat actors have been exploiting the BlueHammer Microsoft Defender vulnerability as a zero-day to gain System privileges.
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Microsoft says Windows 11’s built-in Defender is enough for many users
Microsoft wants Windows 11 owners to stop worrying about buying antivirus software. In statements reported by PCMag and ...
Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...
Although the team with Microsoft moved swiftly to patch the BlueHammer vulnerability, other exploits still threaten Microsoft ...
A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...
Three proof-of-concept exploits are being used in active attacks against Microsoft's built-in security platform; two are ...
Microsoft says its built-in Defender antivirus in Windows 11 offers sufficient protection for most users, citing deep OS ...
RedSun exploit targets Microsoft Defender zero-day, granting SYSTEM access on fully patched Windows systems with no patch ...
The vulnerability was revealed by a disgruntled researcher.
The Microsoft Defender Security Research Team has confirmed that a pervasive new authentication code attack is compromising hundreds of organizations daily.
Microsoft’s April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company’s largest ...
The announcement follows Anthropic’s debut of its leading-edge Mythos model, which the company says has already found ...
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