Anthropic Confirms Hidden Tracking in Claude Code, Promises Transparent Telemetry Ahead
Anthropic's Claude Code versions released between April and June 2026 contained a covert monitoring mechanism that sent user location, identity, time zone, and domain data to remote servers without user consent or any option to disable it. The issue was flagged after a developer discovered the tool was selectively targeting users suspected of accessing Claude through grey-market resellers, particularly those routing through China. China's National Vulnerability Database classified the behavior as a 'serious threat' and advised users to uninstall or update the tool, even though Claude Code is not officially approved for use in China. Anthropic engineer Thariq Shihipar acknowledged the tracking was an experiment designed to combat account abuse by unauthorized resellers and prevent AI model distillation by third parties. While Anthropic confirmed the hidden mechanism would be removed, the company stated that telemetry would remain in the product going forward — only now disclosed visibly to users rather than operating silently.
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