Interesting so first the device reads the lightning connector itself to configure the pins which is a plaintext exchange? Then the mfi handshake is done separa

Interesting so first the device reads the lightning connector itself to configure the pins which is a plaintext exchange? Then the mfi handshake is done separately using a chip in the accessory? He didn't say exactly what had to be done to activate the debug UART. Presumably once he determined the ids for debug accessory there was no mfi handshake required or the mfi chips he had were able to pass the handshake. Surprising that the debug functions wouldn't be protected by a different mfi key.