Bumping (from the English. Bump - blow, push, collision) - a method of opening locks, based on the transfer of kinetic energy to the pins due to strikes on a specially machined key. The pins are randomly thrown up, and by turning the bump key at the right moment, you can open the lock. This method of hacking leaves no visible marks and works on toggle-pin systems and locks with vertical milling of the secret.
Bump - bumping , opening the lock with bumps. And what is your castle?
The term "bumping" comes from the English word "bump" , which means "knock, hit . " The name quite accurately describes the hacking method: one sharp blow - and the door wide open.
Virtually any cylinder lock, including Mul-t-lock, can be easily opened using bumping , also known as a tapping method. The method is based on the fact that when it strikes the upper pin, it transmits the impact energy to the lower pin, while remaining in place. At the moment of impact, the cylinder must be given a moment of momentum.
To understand how this happens, you need to remember how one of the most popular locking mechanisms in Russia is arranged - the pin cylinder lock, which is also often called English. The “heart” of such a lock is the core. It was he who, turning, actuates the bolt (the same metal "tongue" that "opens" and "closes" the door).
So that the cylinder could “recognize” the native key, vertical channels are drilled in it, into each of which two pins are inserted in a strictly defined position — code and locking (in other words, blocking). When the lock is opened with “its” key, its teeth (or, as they say, professionals, “secrets”) line the pins horizontally and vertically in the correct order, the key turns, the cylinder rotates and the door opens.
If at least one “secret” of the key is different in size from the desired one, the pins do not line up in the correct order, and the lock remains closed. That is why the same key cannot open two locks of a similar model. Before the bumping was “invented”, criminals had a hard time: to open the pin lock, a large set of master keys, serious experience, sensitive fingers and quite a lot of time were required ...
The invention of bumping in the middle of the last century in Europe greatly facilitated the professional life of the "burghers". The criminal inserts a harvested “blank” into the keyhole and sharply hits it with a small hammer or even with a wooden brush. The bump key hits the coding pins, causing the blocking keys to jump in random order. In one of a fraction of a second, randomly bouncing pins get into the desired position, the criminal turns the “pseudo-key” and the door opens.
In order to open a simple lock, apartment thief is sometimes quite thin steel wire, for more complex models, blanks are made “in general terms” resembling a real key (to create them, the keys to similar locks are often “modified”, slightly shortening them and deepening the “cutting”) . Such blanks in Russia are called bump keys or "golden keys".
Depending on the complexity of the lock and the quality of the bump key, the door opening time ranges from 5 seconds to 5 minutes. And not so long ago, criminal handymen automated the hacking process by creating a pick gun - a tool such as a “pistol” that strikes a series of blows on the code elements of the locks, making the hacking procedure even faster and easier.
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