[readred]

Yep, sounds standard. If other companies could verify aftermarket hacks to void warranty, you can bet they would.

[raxxorrax]

Oh, they do. I think a lot of smartphones do check if the bootloader was ever overwritten.

[colejohnson66]

Years ago (when the jailbreak scene was still a thing), I heard claims that Apple could detect if a device was jailbroken previously (and wiped/restored since), presumably to deny service claims on the basis of a voided warranty. However, there were also claims that “restoring your device removes all evidence”. I’m partial to the latter being true, but I’ve never seen any evidence of either.