Starting November 12, 2026, Anthropic is implementing a new Supported Regions Policy. This update restricts access to Claude.ai, Claude Code, Cowork, and official APIs for users located in Russia and those working for Russian companies.
The new rules apply to all access methods, including cloud platforms and authorized resellers. Even using AWS Bedrock will no longer bypass these regional restrictions. Anthropic now evaluates user location, company registration, and ownership control to enforce compliance.
The company has introduced a security monitoring system that analyzes behavioral data, such as time zones and linguistic patterns, with a 30-day data retention period. In the first half of 2026, Anthropic blocked 11.4 million accounts and processed 398,000 appeals.
These measures are part of Anthropic's preparations for an IPO. The company's S-1 filing reveals that 5–7% of its revenue over the last nine months came from clients who violated usage policies. By cutting off this revenue, Anthropic aims to improve financial transparency for Wall Street.
Developers relying on Claude API are advised to review their corporate structure and jurisdiction to ensure compliance. The company suggests exporting prompt histories and preparing for potential migration to alternative platforms as regional segmentation in the AI market intensifies.
