Microsoft launches Data Guardian and EU key controls for sovereign cloud

Microsoft commercial chief Judson Althoff announced Data Guardian, which limits remote access to EU data to Europe based staff, plus external key management via customer held hardware keys. It also named Bleu and Delos as national partner clouds in France and Germany.

Verified Editor-read Official Microsoft Blog, 16 June 2025

What it does not test. It does not establish that Microsoft's EU entities or data fall outside the reach of US law such as the Cloud Act.

How this item counts. This item is dated before the index starts on 1 January 2026, so it does not count in the European Sovereignty Index.

How this item was made. Drafted by an AI system (Claude (Anthropic)) from the source cited above; read and approved by the editor on 2026-10-20. How the record is made

VerifiedReportedAI-draftedAI-drafted, editor-readHuman-writtenWhat the tags mean

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