they can cut you off access until you give them the keys to decrypt
Discussion
right. that's why you should keep the data also on your devices.
Wait, what? Who's cutting off access unless users provide them with the keys to their locally-encrypted files? I've never heard of such a thing. That's beyond intrusive, and a bit a far-fetched if you ask me. Do you have any source links to cloud storage providers making this demand?
was an assumption