Tony, you are paranoid... you can't be serious:
You mean like...
Apple sending 'go slow' data in updates to old iPhones trying to get the owners to buy later models. (you can't believe that really happened; surely!)
Or Microsoft sending code in updates to cripple old OS to make the owners by later versions of their OS.
Or Samsung doing on-line updates to older Blu-Ray players that makes them in-operable (they did mine), then they can't be fixed, and when you complain, they advise you to buy a new one!
Or Siemens digital controlled domestic appliances that stop working after a set time period.
...and that's only scatching the surface; gawd knows what else is being done that we don't even know about. (@^@)
You need to relay your fears to...
https://en.wikipedia.org/wiki/List_of_conspiracy_theories
Or take 'Frostyballs# advice :)
Anything that relies on digital data to operate puts you totally at the mercy of the writers of the source code of that data.... i.e. the manufactures. Software writers (manufacturers) will even leave 'time-bombs' in software so that at a given time it trips, then makes the hardware (or software) stop working or change its characteristics.
"Their coming to take me away today, to the funny farm where the..."
DaveH-UK