Bumping Locks & Lock Bumping

Bumping Locks, or Lock Bumping, is a lock picking technique for opening a pin tumbler lock using a specially-crafted bump key. This method is also known as key bumping or bump keying.

Bumping Locks

An example of a "Bump Key" used for bumping locks.

The history of bumping locks goes back to 1970s when some locksmiths in Denmark shared a technique for knocking on a lock cylinder, in which an ordinary key can be filed so that, when it is inserted into a door lock and tapped, the internal pins can be jarred in such a way that the lock will open.

To bump locks, a person does not need any special set of skills or expertise as compared to other lock picking techniques. The lock bumping technique is so simple that with little knowledge and practice, even a 10 year old child can bump a lock in minutes.

Bump keys can be made without much effort and one bump key can be used to pick all cylindrical locks. Nowadays you may even find sets of bump keys and lock bumping kits available for purchase.

Bump Proof Lock

An Example of a Bump Proof Lock

There are locks available that are claimed to be “bump proof”, and they are significantly more expensive than normal locks.

90+% of American households use standard cylinder locks which can be bumped without much effort. Some locks can be bumped even with a simple flick of a finger on the head of the key.

The bumping method is non-destructive. If the lock is bumped it is unlikely to be significantly damaged, hence the police may have no way of telling if criminals have gained entry via lock bumping or some other means.

This category covers specialized guides on easiest lock bumping methods, ways to craft bump keys, how to bump locks and much more!


Read Our Free Articles about Bumping Locks

Bump Proof Locks

Nowadays, more and more people are looking for bump proof locks.  Back in 2006, a well respected security expert from the US, by the name of Marc Tobias, started talking in public about the relatively unknown practice of lock bumping.  He also wrote two white papers highlighting the strategy and the possible legal issues.  A […]

Bumping Door Locks

Gone are the days when we can install door locks and feel secure.  Even if we install them today, we have this nagging feeling that they’re not enough.  Unfortunately, there’s a basis for this paranoia.  The FBI released figures saying that in every 15.4 seconds, a home in the US is getting burglarized.  Sure, we […]

Bumping Locks Video

A Google search for bumping locks video will give you 14,200,000 results and you can expect that number to grow a few millions more.  This is because more and more people are becoming curious and more and more people are becoming willing of sharing this information.  A lot of people would think that this is […]

How To Bump A Lock

It’s really no surprise why there are a lot of information online on how to bump a lock.  The surprising thing is why a lot of people seem to tiptoe around the information.  It’s either they’re afraid of giving you the information upfront or they just want to inject more fanfare to it than necessary.  […]

How To Make A Bump Key

A lot of people are looking online for information on how to make a bump key.  If you’re familiar with bump keys, then you know why this is the case.  After all, more and more people are warning about the potential security threats with this relatively easy lock picking technique.  But still, you probably want […]

What Are Bump Keys?

So you're looking for the answer to what bump keys are. Why is it that finding a definitive answer prooves difficult? I'll let you into a secret.. Lock bumping is effective, and exposes a crucial flaw in the locks that protect 90% of our homes in the US! Many lock manufacturers don't want this information […]

What Is Lock Bumping?

What is lock bumping?  You’ve heard this question at least once in your life.  Unfortunately for you, you’ve received several different answers for a single question.  It really depends on who you ask.  They approach the subject differently and this is why they come up with different answers. Definitions of lock bumping Here are several […]

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