@xiaohu: Following exposure that Claude Code secretly adds 'invisible watermarks' in prompts for users in China timezone and specific AI labs when using third-party proxies, Alibaba announces a complete internal ban on using Claude Code for work and development in office environments...
Summary
Alibaba has announced a comprehensive internal ban on using Claude Code for work and development, after it was exposed that Claude Code adds invisible watermarks for users in the China timezone and specific AI labs.
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Cached at: 07/03/26, 08:32 AM
Due to the exposure of Claude Code secretly adding “invisible watermarks” in Prompts for users in the China time zone and specific AI labs who use third-party proxies
Alibaba has announced a comprehensive internal ban on using Claude Code
Claude Code is not allowed for work and development in the office environment… https://t.co/z1nsl1jV7M
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@Fenng: Ali fully bans internal employees from using Claude Code in office environment. This news reminds me of the group of people who used Yiyuyan for Chinese programming ten or twenty years ago.
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@xiangxiang103: Wow, Anthropic really dropped the ball this time. Someone dug up hidden code in the Claude Code binary — specifically designed to detect whether you're a Chinese user or routing through China. Not ordinary telemetry, but deliberately obfuscated, not mentioned in release notes, and completely unknown to users. The process goes like this: - Detects you...
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