A friend asked about putting some of his data on Microsoft's OneDrive.
I did some research, and what I learned seems very surprising.
It appears that all the user data on MS OneDrive is store completely unencrypted (it is only temporarily encrypted during transfer). The only "security" is trusting that whomever they hire to work at their datacenters, along with all of their subcontractors, are not looking at or copying any of the data (which would be trivially easy since it is unencrypted).
Is this an accurate understanding?
What's surprising is the number of people and businesses who apparently keep their data on OneDrive. I'm guessing my understanding is incorrect, or most people are ignorant of how their data is stored.