Revealed: how Microsoft handed the NSA access to encrypted messages | guardian.co.uk:
Skype worked to enable Prism collection of video calls
Company says it is legally compelled to comply
[..]
The company worked with the FBI this year to allow the NSA easier access via Prism to its cloud storage service SkyDrive, which now has more than 250 million users worldwide;
Ladies and Gentlemen, der Anfang vom Ende von Microsoft als B2B-Unternehmen.