Just a quick one. Our Global Foundation Services organization (the ones who run our datacenters) just published a new whitepaper:

Information Security Management System for Microsoft Cloud Infrastructure
This paper describes the Information Security Management System program for Microsoft's Cloud Infrastructure, as well as some of the processes and benefits realized from operating this model. An overview of the key certifications and attestations Microsoft maintains to prove to cloud customers that information security is central to Microsoft cloud operations is included.

Roger