Grok Build Exposed for Uploading Entire Codebases

charliermarsh · x · 2026-07-14

XBToshi pointed out that Grok Build has severe issues: during local use, it silently uploads entire repository data, Git commit history, and potentially sensitive files like .env.local and .dev.vars to the cloud.

According to the repost, tests showed that even without any tool-calls, about 12GB of repository data was sent to the cloud, with at least 5GB going to Google Cloud. The author described the behavior as "malware-like background code collection" and advised against using it for sensitive repositories.

Related event: Grok Build/CLI accused of silently uploading entire codebases; xAI promises to delete data(47 posts)→

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