Starting December 9, Microsoft will enable Anthropic’s Claude models by default for Microsoft 365 Copilot tenants in the UK. This change applies to organizations where administrators have not previously configured specific settings for these models.
The update includes the retirement of the limited-scope access setting. Tenants that previously restricted Claude to specific departments will see access automatically expanded to all users unless administrators manually adjust their configurations before the deadline.
Data processed by Claude models is handled in the US and does not fall under Microsoft’s EU Data Boundary commitments. This distinguishes the UK from the EU and EFTA regions, where these default settings do not apply.
Administrators retain the ability to disable Claude access at any time, both before and after the December 9 update. Microsoft advises IT and compliance teams to review their data processing requirements to ensure alignment with internal policies.
