So how exactly could this be surprising? If you choose to place your data somewhere out of your control because you can't be bothered to care, obviously people can (and in some cases will) be digging into it.
Vendors like IBM know and get out of their cloud once they sold it and it's no longer under their control.
Would anyone store their most private letters at some strangers house just because they offer it? It's exactly the same thing.
The cloud has it's uses, but the trust some people have in it for anything important is misplaced.