Trusted Cloud: Microsoft Azure Security, Privacy, and Compliance - describes the key points of the Azure approach to enabling trust:
Security. Microsoft makes security a priority at every step, from design and operations, to threat detection and mitigation, network isolation, data encryption, identity and access control.
Privacy and Control. Microsoft implements strong privacy protections in Azure services and makes a clear commitment through strong policies to provide customers with control over their data.
Transparency. Microsoft informs customer where data is stored, how it is secured, who can access it, and under what circumstances.
Compliance. Microsoft invests heavily in the development of robust and innovative compliance processes.