I do not think that what you store on cloud systems really belongs to you. (though you think it is) 
These gets regularly scanned. In some countries it's an obligatory requirement to do scanning for child pornography and other sensitive material.
Probably use something like Duplicati when you backup on these Cloud systems.

These gets regularly scanned. In some countries it's an obligatory requirement to do scanning for child pornography and other sensitive material.
Probably use something like Duplicati when you backup on these Cloud systems.

