>>
It's encrypted, but here's the thing: the encryption key is also (almost certainly) stored in the same chip. So all the FBI needs to do is de-solder the chip, mount it in its own hardware, and read out the data.
This is not correct and was the main suggestion you made.
>>
I don't know how I could have made it any clearer that I was proposing an attack on the PIN, not the key.
Because you just did. You are now claiming that an offhand comment you made that resembles what the ACLU suggests is the main point of your post and that is not the case.
That was one of two proposed attacks. At the time I wrote it, I was unaware that the A6 chip has a UID that is used in the KDF. That renders the first of my two proposed attacks ineffective, but not the second one.
>> It's encrypted, but here's the thing: the encryption key is also (almost certainly) stored in the same chip. So all the FBI needs to do is de-solder the chip, mount it in its own hardware, and read out the data.
This is not correct and was the main suggestion you made.
>> I don't know how I could have made it any clearer that I was proposing an attack on the PIN, not the key.
Because you just did. You are now claiming that an offhand comment you made that resembles what the ACLU suggests is the main point of your post and that is not the case.