Chiming in here because I'm hoping to find a solution as well. I am setting up a university library makerspace so we will have thousands of people with physical access to our UM3 printers. Since anyone that can press the wheel button can look up the IP and gain access via Cura Connect, we can't really enable network access. I was hoping only admin users would be able to control printing (send, abort, etc), not anyone with a computer/mobile device. Is the UM5 more secure?
Oh that's unfortunate. This might actually stop us from going with Ultimaker. What do people with UMs in public spaces normally do to secure the printers? just leave them offline and disconnect WIFI?