Lock bumping (lockpicking technique)

Via metafilter, check out the demonstration (97 min, Windows Media format) of this incredible lockpicking technique by the TOOOL association. It explains the principle behing the technique and shows how to make your own tools (filing a key into a bumpkey).

What's impressive about this technique is that it apparently requires very little training, works with a large majority of pin tumbler locks and doesn't leave any trace.
In addition, the tools (a bumpkey that fits the target lock and a flexible hammer) are simple, discreet and easy to make (bumpkeys seem surprisingly tolerant to fabrication flaws).

Also worth checking out, a howto video for making your own (traditional) lockpick set.

Update (2006/05/01): MindCamp 2.0 was held this week-end. It was a blast. Amongst other things, someone had brought some looks and some bumpkeys for people to try. It was really trivial.
On my first try I bumped the key maybe half a dozen times before successfully opening the lock. My second try actually took longer, but still didn't take long or require any skills.

i want to open lokcs

That is just simply crazy. Who would be the customers for such tools? Thieves?

well think of the possibilities of this information has if it hits main stream, im sure it beats the old fasioned breaking entering way of prying in with a flathead and takes less time this is truely a problem. The fact it takes almost no effort and is reletivly fast makes it a powerful tool for the common criminal. kinda makes you think twice about leaving home.

It's not neccessarily only criminals that use this technique. A lot of people practice traditional lockpicking as a recreation, and many people don't do it without permission or on other homeowners' locks.

there's a saying-"only the paranoid survive". By properly evaluating the flaws in security mechanisms, while providing a forum for disussion on how best to detect said flaws while refining the process on security, are we then able to feel "secure".