Microsoft Teams
Collaboration platform with chat, video and file sharing, part of Microsoft 365
- Vendor
- 🇺🇸 Microsoft Corporation
- HQ Country
- 🇺🇸 US
- Risk Level
- 🔶 Elevated
- Open Source
- No
- Data Portability
- Partial
- Self-Hosted
- No
SaaS on Azure. EU Data Boundary available but does not reduce CLOUD Act exposure.
⚠️ Jurisdiction Risk
This product is subject to foreign jurisdiction (US), which may allow foreign authorities to compel data disclosure.
Key Concerns
- Subject to US CLOUD Act
- Strong vendor dependency
- Tight integration with Microsoft 365 ecosystem
NDSI Assessment Breakdown
Norwegian Digital Sovereignty Index v1.0 — Assessed 2025-12-01
Norway/EU data storage available. Customer Key possible.
Microsoft carbon-negative commitment
Subject to CLOUD Act. EU Data Boundary does not reduce legal exposure.
Strong Norwegian partner network and local support
Widely used in Norwegian public sector, potential single point of failure
Requires Microsoft infrastructure. No self-hosting.
ISO 27001, SOC 2, strong security features
US headquarters, publicly traded company with global dominance
Dependent on Azure, complex supply chain
Proprietary, strong lock-in to Microsoft 365
What You Can Do
Enable EU Data Boundary
Ensure data is stored and processed within EU/EEA
Implement Customer Key
Use your own encryption keys via Azure Key Vault