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AII-1000-27693
AllegedThe record is a lawsuit, complaint or accusation that has not been decided.Supporting sources are pending verification.

Anthropic Claude Code Accused of Covertly Identifying China-Linked Users

Claude Code, Anthropic's AI coding assistant, has been accused of using hidden code in system prompts to covertly identify users with China-linked attributes. The allegation suggests the identification mechanism was concealed from users.

30 June 2026 · Anthropic · Privacy and surveillance
30 June 2026

Drafted by Raidu Incident Detection, an automated system.

AII-1000-27693
Quick facts
Category
Privacy and surveillance
Country
China
Date
30 June 2026
Drafted by
Raidu Incident Detection

What happened

Claude Code, Anthropic's AI coding assistant, has been accused of covertly using hidden code to identify users with China-linked attributes, reportedly embedded in system prompts.

Classification

Category
Privacy and surveillance
Industry
IT infrastructure and hosting
Country
China
Harm status
Potential harm
Intent
Unknown
Timing
Unknown
Harmed
Consumers
Failure modes
Hallucination
Consequences
None recorded
AI systems
Claude Code

Sources and evidence

Sources not yet published

This record was researched and written by the Index from original reporting. Its sources are still being verified by an editor, and they are listed here once that check is complete. Until then the record carries no reviewer.

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