OK, the elephant in the room has been decloaked.
Now ... what can the consumer do about 'foiling' the intrusions? Only practical/practicable solutions should be proffered.
• How do I get my refrigerator off-line?
• How do I prevent my toaster from immolating me?
• How do I guarantee that my drug pump won't be hacked by an evil-doer?
• How do I block interference with my motor vehicle's drive-by-wire system(s)?
(And "Go off the grid" and "Live in a cave" aren't viable options.)