Heh... MS seems to be one of the leaders in the area of how private data will be used.  After reading their latest privacy statement for O365, I came away with the serious impression that you can summarize it all in just a sentence or two.

My words, not MS'...
Here's how we're going to use your data and we can change that anytime we like and, yes, we're sending it to a bunch of people you might not want to actually have such data.  If you don't like that, don't use our products (says the drug pusher to the addicts 😉 )