Microsoft Edge detects and revokes malicious sideloaded extensions
Security Tool/Service
Summary
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Microsoft Edge is adding a security control to detect and revoke malicious sideloaded extensions, reducing the risk from browser add-ons installed outside official channels. The feature is set to roll out in November for standard multi-tenant instances worldwide, giving administrators and users stronger protection against unvetted extensions.
Related Happenings
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Last: 27.04.2026 14:23
Sources 1
About this happening:
The **GlassWorm v2** malware activity now uses **cloned VS Code extensions** on **Open VSX** to deliver payloads that steal credentials, deploy a **RAT**, and spread across multip...
GlassWorm v2 cloned VS Code extension loaders
Malware ActivityAbout this happening: The **GlassWorm v2** malware activity now uses **cloned VS Code extensions** on **Open VSX** to deliver payloads that steal credentials, deploy a **RAT**, and spread across multip...
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Campaign
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Last: 13.04.2026 12:52
Sources 1
About this happening:
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Fake Claude PlugX phishing campaign
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Latest development: 07.05.2026 13:02
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Malware Activity
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Last: 10.04.2026 16:23
Sources 1
About this happening:
The **GlassWorm** malware set now uses a **Zig dropper** that can silently infect **all VS Code-based IDEs** on a developer's machine, widening the reach of the compromise. The pa...
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Sources 1
About this happening:
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Storm-2561 SEO-poisoning VPN credential-theft campaign
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Incident
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Sources 1
About this happening:
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Timeline
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26.09.2025 18:39 2 articles · 8mo ago
Microsoft Edge malicious extension control disclosed
Initial DisclosureMicrosoft revealed in the Microsoft 365 roadmap that Microsoft Edge will detect and revoke malicious sideloaded extensions, addressing add-ons installed through Developer Mode and "Load unpacked" outside the Microsoft Edge Add-ons store. The feature is planned to launch in November for standard multi-tenant instances worldwide.
Show sources
- Microsoft Edge to block malicious sideloaded extensions — www.bleepingcomputer.com — 26.09.2025 18:39
- Microsoft Edge to block malicious sideloaded extensions — www.bleepingcomputer.com — 26.09.2025 18:39