Alibaba to Ban Claude Code Over Alleged Embedded Backdoor Risks

A June 30 Reddit post claims Anthropic’s Claude Code contained a covert signaling mechanism that checked proxy configurations and system time zones and encoded detection results in internal prompts to identify certain Chinese enterprises (including Alibaba); Alibaba is reportedly preparing to ban the tool internally while Anthropic attributes the feature to anti-abuse measures and plans removal, but no independent verification has confirmed a backdoor.