What is scary to many people is that any motivated thief can learn how to bump open a lock with a little practice and instuctions from the various lock bumping videos on the internet. New home doors are much better today such as those homes for sale in san clemente with ocean views. The newer doors have way better locks on them. Bump keys are even sold online to locksmiths, but almost anyone can order one. Owning and using a bump key with criminal intent is illegal in most communities. Lock bumping is a locksmiths technique to open locks, which, according to the Associated Lockmiths Of America (ALOA), has been one method used by locksmiths for the past 75 years for which there is a key or cylinder malfunction. By using a key that fits in a lock, but does not necessarily open the same lock, and filing the grooves in the key to their maximum depth, one can open most pin tumbler locks as well as dimple locks, whether they are 'pin in pin' or not. One does not necessarly have to obtain an uncut key blank to make a bump key. Any key that fits that particular lock can be made into a bump key. By appling a little torque to the bump key and tapping it with a screwdrive or hammer, one can successfully bump a lock open. But before we get too far into the subject of lock bumping, lets first take a look at how a typical residential lock works. source link