Windows 10 ninja update.
If you think the auto-update is skeezy, try reading the privacy contract. In effect, nothing on your computer is private as Micro$oft reserves the right to not only go thru your emails, but all the files on your hard drive if they decide (using their undisclosed set of rules) that you pose a risk to their system. They can do this at any time, without warning, and they don't have to tell you when they did it, what they're looking for, what they looked at, or what they did with what they found. They can also use your computer to push system updates onto other computers in your network... oh, and to unfamiliar computers on the Internet, using your processing speed and bandwidth so the company doesn't have to support massive user updates on their proprietary servers.
Yes, some of these things can be shut off, if you're savvy enough to know they're there and how to go thru multiple screens and a call to Micro$oft customer disservice to do so (maybe, as I was never able to confirm it when I was taking care of the work computers because M$ people kept hanging up on me) but it's a serious security violation for anyone who works with medical information... Or to anyone who wants a little peace of mind regarding the privacy of their personal files. If a company builds a back old into a program, it's only a matter of time before hackers find it and exploit it.