A personal tracking device that can be turned on or off by a remote entity at their convenience, running any app of their choosing (including updates to add/change/delete those apps). What could possibly go wrong?
Almost every car made in the past 3-4 years has all of the these same abilities. Your Ford, GM, Toyota, Lexus, Tesla, etc. can be started, from an app. That app doesn't talk to your car. It talks to a server at Ford. That server sends the instructions, updates, etc. to you your car/truck. That means F/G/T/L/T/etc. can start, update, or unlock your car anytime they want by writing some code on their end (if they don't already have it).
Now... apply that to tons of other devices. Cameras, TVs, routers, etc. This is not a new idea. They are just using it in a new and novel way.