Microsoft Entra is a family of identity and network access products from Microsoft. Its foundation, Microsoft Entra ID, is a cloud identity and access management service that handles authentication and policy enforcement for users, devices, applications and resources. Other products cover identity governance, risk protection, private and internet access, external identities and identities for AI agents. Every Microsoft 365, Azure and Dynamics CRM Online tenant is already a Microsoft Entra tenant.
Microsoft is a US company, so Entra falls under US law, including the CLOUD Act, which can apply to data held outside the United States. For public cloud tenants, Microsoft stores directory data in the geographic location selected at tenant creation. For customers in Europe, most data is stored in Europe, and for EU and EFTA tenants within the EU Data Boundary, with some documented exceptions such as security signals and optional features. Entra is proprietary and delivered only as a Microsoft-operated cloud service.