Caveat, Most everything said above is true, but... I work in hospital IT, we don't go near anything like these devices. They are FDA approved - If a WD HDD goes out in a device I can't even replace it with the same model from CDW, the replacement has to come from the vendor with an FDA sticker on it. The "Sticker Price" is usually about $500... We have a BioMed department that handles all that and I work with them often. Very few devices are network connected, most all are stand-alone. Most all devices that are connected to the network are "send only," they push reports to a server. They have a very specific and limited interface to change settings and you have to be touching it to get into it. BioMed does things like adjust/calibrate but on most devices that is only available via direct serial connection... I am sure security needs significant changes but you really need physical access to most everything.