Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity

Reported by SecurityWeek (Eduard Kovacs)

Summary by Cyber Security News22 Sep 2026, 15:26 CEST

About this summary. This is a short, independently written summary of an article first published by SecurityWeek. Cyber Security News did not report or verify the underlying story. Read the original: https://www.securityweek.com/nightmare-eclipse-drops-new-microsoft-defender-exploit-after-revealing-identity/

Abdelhamid Naceri, a former Microsoft Germany employee, is the exploit leaker Nightmare Eclipse, aka Chaotic Eclipse.

Read the full article at SecurityWeek →

Source attribution: headline and facts are from SecurityWeek (securityweek.com). Summary method: excerpt of the source description. See our source attribution policy.