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Microsoft Defender auto-updates blocked by vulnerability hunter

September 23, 2026, 08:44 UTC · Redmond, United States · Americas

Researcher NightmareEclipse found a new way to interfere with Microsoft Defender's auto-updates.

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Technology events in United States

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• Adobe Connect security vulnerabilities patched across Android, macOS and Windows
• Microsoft disrupts EvilTokens phishing service
• F5 patches critical BIG-IP APM zero-day exploited for unauthenticated RCE
• GitHub releases Copilot 1.18.0 for JetBrains IDEs

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• Cactus Compute releases Needle 2 AI model for Raspberry Pi 5
• NDA LAB KPI opens at Kyiv Polytechnic Institute