Lock Bumping Keys

bump key Frequently Asked Questions

Q: What is a bump key?

A: A bump key is a key that will fit a keyhole and has been carved to the deepest lengths allowed by the manufacturer.

Q: What is a bump key used for?

A: A bump key is used to bypass tumble and dimple locks, usually without leaving any signs of tampering.
Q: Where did the bump key come from?

A: Experts trace the use and term back to Denmark around 1980, although a patent for a similar device exists as far back as 1926.

Q: Are bump keys legal?

A: As with most tools and devices, a bump key is not necessarily contraband.  It is the purpose of its use that declares it as legal or illegal.

Q: Where can I buy a bump key?

A: Typically, you must make a bump key, as they are not something readily available from a locksmith or hardware store.  Recent events have made them easier to get via the Internet.

Q: What locks cannot be bypassed by a bump key?

A: The only locks 100% impervious to bump key attacks are locks that use no key, such as a biometric, electronic, or magnetic locking system.

Q: I have an expensive lock, am I safe from a bump key?

A: Wrong.  In fact, some more expensive locks are more susceptible to a bump key.
Q: I can’t afford a non-keyed lock, what can I do?

A: Hire a locksmith to check your locks.  The locksmith may recommend new locks.  Also, make the lock more difficult to get to.

Q: How common is a bump key?

A: Currently, officials do not see the bump key as a widespread threat.  The recent noise being made in reference to bump keys via news and other media outlets will most likely help this to change.

Q: Is a bump key really that easy to use?

A: Experts have proven that it takes less than an hour to train a complete novice how to properly use a bump key.

Q: Why did you have to give all this info out about bump keys?  Aren’t you putting us at risk?

A: The information here is greatly watered down, and most of it is already available through a variety of different means.  Our purpose here is to educate the general consumer about the danger presented by the bump key as wel as help them protect themselves from it.