I agree with Darcy that providing any private data is a balancing act--we want the ease of being able to have one doc see the tests, x-rays,etc done by another doc without us driving all over to gather things and want it to be pretty instant. but we don't want just anyone to access the info either. We want our computer to notify us when our favorite on-line fabric store has a super sale, but we don't want to inundated with ads either. On FB we want to get info from all our family & friends, look up pages that interest us--but not get the junk that might interest all those other people!
One concern I have is the use of the voice activated home computers (i.e. Alexa, Echo, etc)--basically it's turned on all the time unless you unplug it (and take out batteries if it has a backup) and it's listening to everything you say and storing that data in order to anticipate what you do/want. My son is a low voltage tech (i.e. fiber optic) and says the dang things are so easy to "hack" that he won't have one in his house. My SIL loves her's--uses to ask all sorts of stuff. Again--a balance.