A: A special type of key called a "bump key" is used in conjunction with a hammer or similar object. By inserting the "bump key" into the key way and tapping the key head with the hammer it is possible to separate the top and bottom pins. Once the pins separate, the key is rotated and the lock can then be opened.
Q: How long has this technique been used?
A: As a part of their job function locksmiths and security professionals have known
about and used this technique for many years. Operating within an industry code of ethics and true security professionals do not share
such security knowledge with the public.





