For the E92 controller, Auto-Locking is implemented via an EFILive supplied Custom Operating System (COS) patch called EFILocker. The EFILocker patch is a new and exclusive technology developed by EFILive to provide security for the tuner and at the same time peace of mind for the customer.
Tune file security restrictions have been enhanced to include the controller's VIN. Using the Controller VIN option, tune files will be restricted to only being flashed into controllers with a VIN that matches the supplied VIN pattern. A VIN pattern may use a dot to indicate "don't care" characters. All other characters must match the target VIN.