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Supply ChainJun 9, 2026

Miasma Supply Chain Worm Burrows Into 73 Microsoft Repositories

Miasma worm infects 73 Microsoft GitHub repositories via compromised account.

Summary

A supply chain worm, dubbed Miasma, has compromised 73 Microsoft code repositories on GitHub. The attack exploited a previously compromised GitHub account, which was also targeted in a similar Miasma attack last month. This incident highlights ongoing risks to software development pipelines and the potential for widespread impact through compromised code bases.

Entities

Microsoft (vendor)GitHub (technology)