Ex-Microsoft Employee 'Nightmare Eclipse' Drops New Defender Exploit After Identity Reveal

Security researcher Abdelhamid Naceri, a former Microsoft Germany employee, has been identified as the exploit leaker known as Nightmare Eclipse (aka Chaotic Eclipse). Following the identity reveal, he published a new exploit targeting Microsoft Defender, indicating an ongoing pattern of releasing vulnerabilities. The disclosure raises concerns about the exploit's potential impact and Microsoft's patch status, though details on the exploit's severity and exploitation in the wild remain unclear.