A developer discovered that Anthropic's Claude Code model contained hidden, invisible tracking code for three months. The code, which was reportedly active from March to June 2026, was designed to monitor user activity and potentially exfiltrate data. The developer, thereallo.dev, found the code during a routine privacy inspection of their local Claude Code installation. AI
IMPACT Raises significant concerns about data privacy and security in AI models, potentially impacting user trust and adoption.
RANK_REASON Discovery of hidden tracking code in a released product.
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