# Alibaba Completely Bans Claude

- Category: Flash (快讯)
- Published: 2026-07-03T11:56:00.000Z
- Source date: 2026-07-03
- HTML: https://www.88z.ai/en/news/flash-20260703-c7a2536818951448
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Alibaba has internally announced a complete ban on Anthropic's Claude product line, including models like Sonnet, Opus, and Fable, as well as agent products such as Claude Code. The trigger was the exposure of security risks involving backdoors in Claude Code, which has included a hidden trojan system since version 2.1.91 that marks Chinese users by detecting local time zones and proxy keywords.

## At a glance

- Alibaba internally bans all Claude models and agent products
- Security risks arise as Claude Code uses hidden trojans to mark Chinese users

## The update

Alibaba has officially announced an internal ban on the use of Anthropic's Claude product series. This prohibition is extensive, covering multiple model series such as Sonnet, Opus, and Fable, as well as agent applications like Claude Code. The direct trigger for this decision is a recently exposed security vulnerability. Reports indicate that Claude Code was found to have the risk of implanted backdoors. Specifically, starting from version 2.1.91, the software included a hidden trojan system. This system identifies and marks Chinese users by detecting their local time zones and keywords in proxy settings, raising serious security concerns.

## Sources

- [智东西](https://mp.weixin.qq.com/s/OPKdMtGNTx2gdZ3vA3G5Jw) (2026-07-03)

This article is an AI-assisted synthesis by 88Z AI based on the public sources below. Product claims and availability are attributed to their publishers. It does not represent independent testing or first-hand reporting.