Miasma Supply Chain Worm Burrows Into 73 Microsoft Repositories
BLUF
A recurring supply chain worm has compromised 73 Microsoft GitHub repositories via a previously breached account.
NEWS
The Miasma worm infiltrated 73 Microsoft repositories through a GitHub account compromised in a prior incident last month. Security researchers identified the campaign as a follow-up to earlier Miasmi activity targeting the same organization. The attack highlights persistent vulnerabilities in account management and supply chain integrity.
Why I Care
This matters because supply chain attacks can distribute malicious code to downstream users at scale. Microsoft customers and partners relying on these repositories face potential data theft or system compromise. It underscores the risk of lingering access from previous breaches.
Next Steps
Organizations should audit all connected GitHub accounts for unauthorized access immediately. Security teams must rotate credentials and enforce multi-factor authentication on all development platforms by end of week. Developers need to scan dependencies for signs of the Miasma worm before deploying updates.
Source: Dark Reading ·