Jul 2, 2026 · Information Security

Anthropic Strips Hidden Code That Detected Chinese Competitor Traffic

Anthropic confirmed that its Claude Code client contained a covert, Unicode‑based detection module that silently flagged traffic from Chinese AI firms and proxy services, and announced that the hidden logic will be completely removed in the upcoming software update.

AI securityAnthropicClaude Code

0 likes · 9 min read

Anthropic Strips Hidden Code That Detected Chinese Competitor Traffic

Black & White Path

Jul 1, 2026 · Information Security

How Claude Code Secretly Spyed on Chinese Users via Unicode Steganography

Reverse engineers uncovered that Anthropic’s Claude Code, from version 2.1.91 to 2.1.196, silently harvests Chinese users’ location, proxy settings, and AI lab affiliation by exploiting Unicode steganography, timezone checks, punctuation substitution, and XOR‑obfuscated strings, prompting a community outcry over trust and privacy.

AnthropicClaude CodeUnicode steganography

0 likes · 10 min read

How Claude Code Secretly Spyed on Chinese Users via Unicode Steganography