[Nicolas___]

The first rule of the cloud is : If you think your data requires a high level of privacy, don't store it on someone else's platform.

The second rule of the cloud is : Paying for a service to get a "private" option doesn't mean the data you store is and always will be 100% unreadable/unusable by the company providing the service. Targetted ads is based on exactly that.

Finally, the most important rule of the cloud is : If you're sad/annoyed/chocked when you realize that companies like Google, Facebook, GitHub, Dropbox, and thousands others have priorities that could conflict with yours at some point and threat your business or your privacy, just don't work with them, just don't rely on them.

[bstpierre]

Or, if your data requires a high level of privacy, encrypt it before you store it somewhere else, in a way that the storage platform can't decrypt it. E.g. tarsnap.