[pritovido]

That is something that must be done, but not by facebook.

It should be done by public and private institutions with a clear control of the data real access and ownership.

The problem with cloud providers is that you can not control them. They can tell you nobody but you access your data, but they can give data access to the US gobertment or their employers or their automatic surveillance and intelligence gathering software without notifying you.

They promise they won't access your data, but of course they do, because you can not prove they did. Everything is under their control.