Comment by michaelt

> That key will get leaked.

Maybe? But biometric passports, chip-and-pin payment cards and SIM cards seem to do reasonably well. And Apple can always push out a mandatory software update that rotates the key, if they need to.

> You could swap out the actual phone camera hardware and sensors for a custom board that feeds the entire phone camera data of your choosing and it would be none-the-wiser.

Apple's 'TrueDepth' cameras are serialised and paired with the rest of the device. The touch ID sensors were before that too.

I don't know the precise details, but reports from people trying to repair devices independently of Apple are that the phone is very much the wiser.

e.g. https://support.apple.com/en-gb/120567 https://www.reddit.com/r/iphonehelp/comments/1dl38kq/iphone_...