Windows azure: Security Concerns

I am concern about the security of the data and application on Windows Azure... I read in a book that The windows azure provides security through service-level agreement.

Can anyone te开发者_StackOverflow中文版ll me about the What kind of authentication mechanisms used to protect my data. How Microsoft provides these securities...

Microsoft publishes a set of documents describing windows azure security which you can find here: http://msdn.microsoft.com/en-us/library/ff934690.aspx

Do you have a specific security concern?