Apples not wrong on this if you ask me...
Is not everything on an iPhone encrypted so if you wipe the device it actually just wipes the encryption keys? Hence in this sense Apple is correct.
Obviously if the device hasn't been wiped and you've jailbreaked it then you can access the file system where items are available unencrypted at that point in time.
This seems to me to that Apple is not wrong in their claim and the researcher is expecting double encryption on email attachments? I don't see the point. How's the phone user supposed to easily open an encrypted attachment file (Also encrypted with full drive encryption) easily and quickly but the attacker with their device cannot? You'd need to have another encryption key tied to a long password you'd have to key in each time.
Sorry but I'm with Apple on this one. Security is good enough already and any more would get in the way of usability too much.
Biting the hand that feeds IT
