I've got several YourPlus Abus locks (all keyed the same) so that I can have one key for basically all the family bikes. The other day I noticed that one of my D-Locks had a plastic part missing, namely where the Abus logo is usually placed. Behind where the logo once was you see the solid metal of the meat of the lock. There is a 7 digit number there.
As it's trivially easy to get a fifty dollar lock keyed to the same yourplus code as mine (if you know my code) and then steal my bike, I'm hoping someone can help me sleep better at night by telling me that it's in no way related to the bitting values of the lock.
Lock in question is the Granit 640.
Yes, I've contacted the manufacturer asking the same question but haven't heard back yet.