Anthropic's Claude Code Allegedly Embeds Spyware for Chinese Users

Anthropic faces allegations of embedding hidden spyware in Claude Code, targeting users connecting through Chinese proxies. A developer claims the tool uses obfuscated Unicode and date formatting changes to silently flag these users. The accusations, which emerged on June 30, 2026, suggest covert user fingerprinting practices akin to spyware. The implicated version is 2.1.91, released on April 2, 2026. Anthropic has not yet responded to these claims, which have gained traction on GitHub. The company previously accused Alibaba-affiliated entities of conducting a distillation campaign to exploit Claude's capabilities. This controversy raises significant privacy concerns, especially given the geopolitical tensions between the U.S. and China. As of July 1, 2026, Anthropic is reportedly rolling back the hidden tracking mechanism.

Key Points: • Anthropic's Claude Code allegedly embeds spyware targeting Chinese users. • The detection mechanism uses obfuscated Unicode and date formats to flag users. • Anthropic has not officially responded to the allegations as of July 1, 2026.