[amlozano]

That doesn't work with iPhones, the Secure Enclave in the only thing that can unlock the phone, and after the attempt limit is exceeded, passcode-protected data is erased by Secure Storage.

I guess if they really wanted to they could attempt to decap the chip and do something with a hardware attack, but thats difficult and dangerous.

[chislobog]

How does gray key bypass this then? GK is still being purchased and sustainability contracts issued for LE today so I would imagine they have a way of attacking it, particularly 6 digit pins or less