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Is Microsoft Teams GDPR-safe?

Partly: read the fine print

Microsoft Teams stores data within the EU, but the vendor is based outside the EU and may be covered by third-country legislation (for US companies: the CLOUD Act) regardless of server location. For non-sensitive data this is rarely a problem, but for customer data you should weigh the risk.

Facts that decide

Vendor jurisdiction Outside EU (Microsoft)
EU data storageYes
GDPR terms / DPAStated to be available, verify in your contract
CertificationsISO 27001, ISO 27017, ISO 27018, ISO 27701, SOC 2, BSI C5
CategoryCollaboration, Video meetings

Full review of Microsoft Teams →

How to use it more safely

  1. Sign a data processing agreement (DPA) if personal data is processed.
  2. Never enter national IDs or sensitive data.
  3. Check the vendor's sub-processors: AI features often forward data.
  4. Read our GDPR guide for small businesses for the full picture.

European alternatives

WF Chat

Webbfabriken

4,3 Very good
Swedish Collaboration Free EU data storage ✓

Swedish team chat with channels, direct messages as well as voice and video calls, running on Webbfabriken's own servers in Stockholm. Drawback: small vendor and a young service without a large ecosystem of integrations.

  • All data is stored in Stockholm, built and run by a Swedish company
  • Free for now, with core features such as channels, video and file sharing
  • Small vendor: long-term future and pricing model unclear (free now, paid tiers may come)

Best for: Small Swedish teams that want all chat data to stay in Sweden without American cloud.

Digital Samba

Digital Samba

4,0 Very good
EU/EEA Video meetings Freemium EU data storage ✓

Spanish video meeting tool that runs in the browser and can be embedded in your own apps via API; all operations are within the EU. The catch: the strength lies in embedding for developers, less as a standalone meeting service.

  • Fully EU-based company and infrastructure (Barcelona)
  • Runs in the browser without installation
  • Most valuable for those who want to integrate video into their own product

Best for: Companies that want to embed GDPR-safe video meetings into their own website or app.

Nextcloud

Nextcloud

4,0 Very good
German/EU
EU/EEA Collaboration Freemium EU data storage ✓

German platform for files, collaboration, chat and calendar, Europe's great alternative to Google Workspace and Microsoft 365.

  • Comprehensive: files, chat, calendar, documents
  • German, can run on own EU servers
  • Requires server operation

Best for: Companies that want control over files and collaboration within the EU.

Common questions

Does Microsoft Teams store data inside the EU?

Yes, Microsoft Teams offers data storage within the EU/EEA.

Is Microsoft Teams covered by the CLOUD Act?

The vendor is based outside the EU. US companies are covered by the CLOUD Act regardless of server location; see the tool page for details.

What is needed to use Microsoft Teams in a GDPR-safe way?

Sign a data processing agreement (DPA) if the tool processes personal data on your behalf, minimise the personal data you feed in, and check the vendor's sub-processors. See our DPA guide for the steps.

Our assessment is based on verified data about vendor, storage and certifications (2026). GDPR compliance also depends on how you use the tool. This is guidance, not legal advice. See How we review.