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Self-Replicating Miasma Worm Hits 73 Microsoft GitHub Repositories in Supply Chain Attack

Summary by TNW
The self-replicating Miasma worm has reached Microsoft‘s own GitHub repositories. GitHub disabled 73 repositories across four Microsoft organisations, including Azure, Azure-Samples, Microsoft, and MicrosoftDocs, after the worm planted malicious code that harvests developer credentials. It is the most significant escalation yet in an ongoing supply chain attack campaign that has been spreading across the open-source […] This story continues at T…
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In the software world, supply chain attacks are among the most serious threats. In this context, Microsoft's GitHub repositories were hit by a major Miasma worm attack. Supply chain attack: Miasma worm strikes 73 Microsoft GitHub repositories. Microsoft's GitHub repositories have become the latest victims of the ongoing self-replicating supply chain attack campaign known as Miasma. According to OpenSourceMalware, 73 Microsoft repositories across…

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The self-replicating worm "Miasma" infested exactly 73 important Microsoft projects on GitHub. The supply chain attack led to immediate blocking of the source code and paralyzed work processes worldwide. (Continue reading)

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Miasma Worm Hits 73 Microsoft GitHub Repositories in Major Supply Chain Attack

Supply Chain Attack / MalwareMicrosoft's GitHub repositories have become the latest to fall victim

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The Hacker News broke the news on Saturday, June 6, 2026.
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