And sounds more scalable too, if they wanted to start applying the same principle to other components like accelerometers, light sensors etc. The point (it see

And sounds more scalable too, if they wanted to start applying the same principle to other components like accelerometers, light sensors etc. The point (it seems) of the T2 chip is that it's isolated from the main system and has far fewer opportunities for exploitation, while leveraging efforts already expended for the iPhone. In my mind the eventual goal of the T1 / T2 etc chip line will be to do everything for a Mac that an iPhone does—storage, webcam control and encoding, audio in/out, fingerprint reader, sensors, battery monitoring, power management etc—and then expose it all to the main system en masse.