"Data storage location Defender for Endpoint operates in the Microsoft Azure datacenters in the European Union, the United Kingdom, or in the United States. Customer data collected by the service may be stored in: (a) the geo-location of the tenant as identified during provisioning or, (b) if Defender for Endpoint uses another Microsoft online service to process such data, the geolocation as defined by the data storage rules of that other online service. For more information, see Where your Microsoft 365 customer data is stored. Customer data in pseudonymized form may also be stored in the central storage and processing systems in the United States." Last sentence.