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China issues ‘backdoor’ security alert over Anthropic’s Claude Code

By Thomson Reuters Jul 8, 2026 | 1:59 AM

BEIJING, July 8 (Reuters) – A cybersecurity platform operated by China’s industry ministry warned on Wednesday that it had identified ​a serious security “backdoor” risk in Anthropic’s ‌AI coding tool, Claude Code.

• In a statement posted on its WeChat account, the National Vulnerability Database said Claude Code contains a built-in monitoring ‌mechanism ​capable of transmitting sensitive ⁠information, including users’ geographic ⁠location and identity-related identifiers, to remote servers without users’ consent.

• The warning applies to Claude Code versions 2.1.91 through 2.1.196.

• ​The database advised that organizations and users should immediately review affected systems and ⁠either uninstall the impacted ⁠versions or upgrade to the ​latest secure release in which the alleged backdoor ​code has been removed.

• It also urged ‌organizations to tighten controls on external network access for development tools and strengthen traffic monitoring on core business networks to ⁠prevent the unauthorized transfer of sensitive data.

• China’s Alibaba has banned employees from using Claude Code ⁠at work ‌after the tool drew scrutiny ⁠for features that can help identify ​China-linked ‌users, Reuters reported last week.

• ​Anthropic said ⁠what was being described as a “backdoor” was an experimental anti-abuse mechanism, and that access to Claude was not permitted in China.

(Reporting by Qiaoyi Li and Laurie Chen; Editing by ​Christian Schmollinger)