Ravie LakshmananJun 09, 2026AI Security / Software Supply Chain
Microsoft on Monday confirmed that it temporarily removed some GitHub repositories in response to a recent security incident that led to 73 of its open-source projects being compromised to inject an information stealer into the code.
"Our priority is to protect customers and the broader ecosystem," a Microsoft spokesperson told The Hacker News via email. "We temporarily removed some repositories as we investigated potential malicious content. Some of these repos have been restored after review, while others may remain offline while work continues."
"As part of our investigation, we notified a small number of customers who may have pulled down content from the affected repositories. We will continue to investigate, and if anything further is identified that requires customer action, we will reach out directly through our established support channels."
The development comes days after the Windows maker cut off access to dozens of its open-source projects hosted on GitHub following reports that they were compromised as part of an ongoing software supply chain campaign codenamed Miasma.
