I've tried searching for this but I havent been able to find a front door style lock that is "un cuttable".
Now I know that anything can be cut but I ask this because my friend has a brother that likes to steal his key and make copys. Making the "hard to pick" locks fairly pointless in this case. So are there any locks that have keys that most locksmiths wont be able to cut?
Thanks for your time.