GitHub confirms 3,800 internal repos stolen through poisoned VS Code extension as supply chain worm hits Microsoft’s Python SDK

GitHub confirmed on May 20 that a poisoned VS Code extension installed on an employee’s device gave attackers access to roughly 3,800 internal repositories at the Microsoft-owned code storage and authorship platform. The threat group TeamPCP, formally tracked by Google Threat Intelligence Group as UNC6780, claimed responsibility and is advertising the stolen repositories for sale starting at $50,000. GitHub’s assessment: the attacker’s claim is “directionally consistent” with the investigation so far. Trend Micro, StepSecurity, and Snyk have formally tracked TeamPCP across at least seven waves of the Mini Shai-Hulud supply chain worm since March.The GitHub breach did not land in isolation. It arrived the same day a new Mini Shai-Hulud wave forged valid cryptographic provenance on 639 malic