Angry Hacker Drops Microsoft Zero-Day Exploit, 1 Billion Users Warned

A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I ...

Microsoft's Security Response Center is being blamed for the zero-day BlueHammer exploit leak

A zero-day BlueHammer exploit was recently published on GitHub in response to alleged MSRC failures, and although Microsoft ...

Microsoft Defender Flaws Exploited on Windows, Two Left Unpatched

Although the team with Microsoft moved swiftly to patch the BlueHammer vulnerability, other exploits still threaten Microsoft ...

New Microsoft Defender “RedSun” zero-day PoC grants SYSTEM privileges

A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...
The Hacker News

Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched

Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...
Dark Reading

Exploits Turn Windows Defender into Attacker Tool

Three proof-of-concept exploits are being used in active attacks against Microsoft's built-in security platform; two are ...

‘BlueHammer’ Exploit Targets Windows, Potentially Impacting 1 Billion+ Devices

A researcher released a working ‘BlueHammer’ Windows zero-day exploit that could impact over 1 billion devices, granting ...

Hackers are abusing unpatched Windows security flaws to hack into organizations

A security researcher published details of three security vulnerabilities in Windows Defender, and the code used to exploit ...
Windows Report

RedSun Exploit Hits Microsoft Defender Zero-Day, Grants SYSTEM Access

RedSun exploit targets Microsoft Defender zero-day, granting SYSTEM access on fully patched Windows systems with no patch ...

Unpatched Microsoft Defender flaw lets hackers gain admin access

A security researcher has published a working exploit for a Microsoft Defender security flaw that affects Windows 10, 11, and ...
PC World

Security expert publishes Windows exploit after Microsoft went silent

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 ...

1 Billion Microsoft Users Warned As Angry Hacker Drops 0-Day Exploit

A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I'm not explaining how this works.” ...