If you don't want someone looking at your data then you probably shouldn't store it on their servers. Especially when the contract you entered with that person

If you don't want someone looking at your data then you probably shouldn't store it on their servers. Especially when the contract you entered with that person says they they can snoop the data. You could try negotiating a contract that says you can store your data on their servers but they aren't allowed to look at that data under any circumstances ever. There are a variety of Dropbox competitors that focus on letting you run the server so you can control the data. If data privacy is of maximum concern, and that is a legitimate thing to be concerned about, then I'd recommend one of those options.