Bad and untrustworthy locksmiths usually illegally acquire copies of your keys and if you are smart you will not place yourself into a situation where you are at risk of this. I am sure you have heard some nightmare stories about uncertified people masquerading as locksmiths. Many of these people are doing so, in order to take advantage of unsuspecting victims. It is not at all unusual for a phony locksmith to make extra copies of keys to fit your locks. Be aware of this when dealing with a locksmith. Once they have the extra keys to your locks, they can access them whenever they want to. Even when you are not around your beloved possessions can be taken! Just use caution in hiring a locksmith and things should go okay. Check reviews and talk to previous customers of the locksmith that you are dealing with at the time. I always trust my locksmith Plano.