Apple seems so good at locking these babies up that not only is the logic board locked but the flash storage is locked to the owners name. So if you put the Flash drive into an external OWC Envoy enclosure, it will impose the original owners name onto it. I found this out from a customer who brought one in for me to install a system onto. Yes I could install a system but it identified itself as the original owners stick. I quickly got off internet access as I did not want the police at my door.
I had another customer who’s machine had been stolen out of his car. He used location services that morning and it found it for him. He called the police and the machine was on my bench by one o’clock. The police had picked it up. The person who had taken it tried to do an internet system installation and had wiped the drive. I used my customers Time Machine external backup and had him all fixed up that day.
BTW I am listed with the police as a Mac specialist as I have helped them serval times and my son is a cop. So I am given a degree of latitude if I get on the internet with stolen machine someone has brought me, but I do report them ASAP.