Microsoft Defender Zero-Day “BlueHammer” Hits KEV Catalog Following Researcher’s Protest Cybersecurity News Por:Ddos 22 de Abril de 2026, 22:53 The post Microsoft Defender Zero-Day “BlueHammer” Hits KEV Catalog Following Researcher’s Protest appeared first on Daily CyberSecurity. Related posts: BlueHammer: Researcher Drops Functional 0-Day Exploit Targeting Windows Defender RedSun: New Windows Defender Zero-Day Turns Protector into Attacker, PoC Publishes Zero-Day Alert: The “Red Sun” Vulnerability Turning Microsoft Defender into a Hacker’s Tool