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Microsoft's open source tools were hacked to steal passwords of AI developers

techcrunch.com

June 9, 2026

3 min read

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Summary

Microsoft is investigating a breach of its open source projects on GitHub, where hackers injected password-stealing malware into the code. Access to dozens of affected projects, including those related to Azure and AI development tools, has been cut off.

Key Takeaways

Microsoft has disabled access to at least 70 of its open source projects on GitHub due to a breach that injected password-stealing malware into the code.
The malware allowed hackers to steal users' passwords and sensitive credentials when the compromised tools were used in AI coding applications.
This incident marks Microsoft's second known breach of its open source projects in recent weeks, following a previous compromise of the Durable Task project.
Microsoft is investigating the breach and has temporarily removed some repositories while notifying affected customers.

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Community Sentiment

Negative

Positives

The discussion highlights the importance of using fine-grained access tokens for AI agents, which could enhance security and reduce risks associated with token misuse.
Sandboxing development environments is emphasized as a crucial practice to limit the impact of potential attacks on AI developers.

Concerns

The repeated security breaches at Microsoft raise serious concerns about their ability to protect sensitive information, especially in the context of AI development.
There is a growing fear that the current RBAC models are inadequate for managing access in environments where AI tools are widely used, increasing the risk of supply chain attacks.