Anthropic's Claude Code Faces Backlash Over Covert User Tracking of Chinese Users

Anthropic's Claude Code Faces Backlash Over Covert User Tracking of Chinese Users

First seen 3 Jul 2026, 15:43 UTC CybersecuritynewsCryptobriefingThenews.PkFeeds.4SysopsMlq.Ai+7 89% similarity 71.2

Article Content

Browse articles
ThreatCluster

Anthropic's AI tool, Claude Code, was found to contain hidden tracking mechanisms targeting Chinese users, raising significant privacy concerns. The covert detection logic, embedded since April 2, 2026, identified users based on their timezone and proxy settings, transmitting data back to Anthropic's servers using steganographic techniques. Following the revelations, Alibaba announced a ban on Claude Code for its employees, effective July 10, 2026, citing security risks. The tracking mechanism was discovered by developer LegitMichel777 and confirmed by security researchers, leading to widespread criticism of Anthropic's practices. The company claimed the tracking was an 'experiment' aimed at preventing unauthorized reselling and model distillation. Despite removing the code on July 1, the backlash continues, with concerns over user privacy and transparency in AI tools. The incident highlights ongoing tensions between Anthropic and Chinese entities amid allegations of industrial espionage.

Key Points: • Anthropic's Claude Code contained hidden tracking mechanisms targeting Chinese users. • Alibaba has banned Claude Code for its employees due to security risks associated with the tool. • The covert tracking logic was discovered by a developer and utilized steganographic techniques.

ThreatCluster AI

Timeline

2026-04-02
Claude Code version 2.1.91 released
The version included hidden tracking mechanisms targeting users with Chinese proxies and timezones.
Mlq.Ai
2026-06-30
Tracking mechanism publicly disclosed
Developer LegitMichel777 revealed the covert tracking logic on the r/ClaudeAI subreddit, sparking controversy.
Finance.Biggo
2026-07-01
Anthropic removes tracking code
Anthropic merged a pull request to remove the covert tracking mechanism from Claude Code.
Thenextweb
2026-07-03
Alibaba announces ban on Claude Code
Alibaba confirmed it would prohibit employees from using Claude Code starting July 10 due to security concerns.
Cybersecuritynews

Community

Browse all →