Lock bumping has been around since the 70’s in Denmark. It has only come to the lime light with the advent of the internet in the United States.
In the Unites States the lock bumping key is considered a burglary tool in most states. However it seems that only California has listed bump keys in one of it’s penal codes directly. It will probablly not be long before the rest of the states pass a code which list the lock bumping key directly.
Normal House Key vs. Lock Bumping Key
Lock Bumping Hammer
Some of the big lock manufactures that have designed and now produce a bump resistant lock include Medeco, Schlage, Kwikset, BiLock and Master. These companies all now advertise either a bump resistant or bump proof lock. The price range of the new locks ranges from around $50 up to $200. However you can probably find them on sale on one of the many sites selling bump proof locks.
One quick and easy way to help prevent the bump key from working in your locks is to spray a lock lubricant or WD40 into the key slot. This tends to make the pins and springs not stick when the bump key is forced or bumped into the key hole.