Claude AI Blocks Access and VPN Use in Russia, China, and Iran

Anthropic reaffirmed this week its comprehensive geographic restriction policy for users in Russia, China, Iran, and North Korea. Although VPNs have been a common workaround to bypass blocks, the company implemented new fingerprint detection algorithms in May 2026, leading to the immediate banning of suspicious accounts.

National Security and Regulatory Compliance

The block is not just a market issue but a matter of US national security. According to the updated terms of service of Anthropic, it is strictly forbidden for entities with majority control by governments or organizations from these countries to use the Claude model family. The measure aims to prevent cutting-edge AI technologies from being used for military or intelligence purposes by nations considered strategic adversaries.

For Russian and Chinese users, accessing the official claude.ai interface now requires much more than a simple VPN tunnel. Social media reports, such as on X, indicate that Anthropic is validating not just the IP address, but also the system's time zone, browser language, and even typical automation tool behavior patterns to identify and suspend unauthorized access.

Risks for Users and Developers

Attempting to circumvent these rules poses significant operational risks. Developers using Anthropic's API through intermediaries may have their workflows disrupted without notice if the data source is traced back to a sanctioned region. In China, the scenario is even more complex due to the "Great Firewall," which also actively blocks Western AI services to promote domestic solutions like those from Baidu and Alibaba.

This move signals increasing fragmentation of the global AI ecosystem. While the West advances with models like Claude and ChatGPT, vast regions of the globe remain in technological silos isolated by geopolitical and regulatory barriers. Anthropic has not officially commented on the increase in suspension rates, but industry analysts suggest the clampdown will continue as models become more powerful and sensitive.