If you have a Kaba Simplex 1000, it has a big vulnerability that must be fixed!
They are a common pushbutton combination lock for businesses and government facilities. If you do have one, you had better call me so that I can install the non-ferous upgrade kit to prevent any goofball with a rare earth magnet from unlocking your door! Anybody who bought one of these locks got it to protect important materials, and unless you get it fixed those materials just aren’t protected.
