I sold my MBP to a friend, and since he updated it to Mountain Lion, it seems to be authorised on my iTunes account and all associated with it, iMessage, iCloud etc.
Is there a way I can change this without having to remote wipe the MBP or having to trust that he is actually doing it?
Is there a way I can change this without having to remote wipe the MBP or having to trust that he is actually doing it?