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

**Executive summary:** The report describes the Miasma supply-chain campaign — a self-replicating worm variant of Mini Shai-Hulud — which has infected dozens of public repositories (including 73 Microsoft repos across multiple orgs) and re-compromised the durabletask package to deliver an information stealer; the actor persists by committing a staged payload to repositories and leveraging developer tools and AI coding agents to execute and propagate.