Microsoft Sets Claude to All Users for Untouched UK Copilot Tenants
On December 9 Microsoft switches Claude on for every UK, EU and EFTA Copilot tenant that never set the Anthropic subprocessor control, and moves 'Microsoft 365 apps only' tenants to All users. EU processing moves inside the EU Data Boundary; UK processing does not.
November 14, 2026 · 10 min read