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The Decoder
xAI open-sources "Grok-Build" on GitHub after massive data breach
In response to user backlash over a serious data breach, xAI has open-sourced its coding agent Grok Build. The tool previously transferred sensitive user files to xAI's servers, including SSH keys and passwords. Elon Musk announced the deletion of all uploaded data and the disabling of the upload feature. By making the source code available on GitHub, xAI aims to promote transparency and re-establish user trust, while the tool now allows for local execution without data upload.
MonitorConfidence: HighImmediate horizonCybersecurity risk: High
Published 16 Jul 2026, 08:10 UTC1 min read
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Summary
TL;DR
- xAI's Grok Build faced criticism for uploading sensitive user files.
- Elon Musk confirmed the deletion of all user-uploaded data.
- Grok Build's upload feature has been permanently disabled.
- The source code is now available on GitHub under Apache 2.0.
- The tool can now operate entirely locally.
Interesting facts
- The Grok Build codebase contains about 844,530 lines of Rust code.
- Remnants of the upload function remain in the code, though they are disabled.
- Data storage has been off by default since July 12.