It’s a crazy argument from them, considering their licensing allows anyone to do anything they like with a system apart from hide the resulting source code. Pol

It’s a crazy argument from them, considering their licensing allows anyone to do anything they like with a system apart from hide the resulting source code. Policing third parties like Dropbox is actually a strength of a proprietary system, so why bring it up at all? I could make the claim that GNU software can get you killed, because military organisations build applications on top of it. This is true, but it hardly seems a fair point to make in assessing something like GNU/Linux. There are legitimate weaknesses and user hostile designs in Apple operating systems, but Dropbox is not one of them. Edited to add: anyone who remotely cares about security would not allow Dropbox anywhere near their systems, but that’s another discussion!