Combination Lock Pwnage Re-done

[Fallen_Pin]

I noticed that the first description of combination lock pwning wasn't all that grand, so I figured I'd try to re-word it, or just outline the procedure. This is the procedure for a Dudley brand locks such as the ones in my school.

Turn lock dial twice clockwise to set it.
Pull lock away from whatevers holding on it to pull the latch. Do this with varying pressure so that you can still move the dial with little difficulty.
Slowly turn dial. When you've come across a correct number (Or rather, the general area (contact point)) The latch will jump and you will not be able to move the dial. <note> Whenever the latch jumps, record the number.
Release pressure, turn the dial counterclockwise once
Pull latch and begin to turn dial counterclockwise.
Latch will jump when you stumble across number. Record number.
Now for the fun part
To find the third number and ultimately pop that sucker open, you can either yank on it randomly, resetting the first two recorded numbers whenever you feel necessary
<or>
Find the last number by releasing pressure after finding second number, then re-applying pressure and looking for the last number. This isn't as easy as padlocks as most combination locks do not have springs that pop open when you stumble across the correct sequence. You really have to have a feel for the lock to know when you have found the correct last number. When you think you have found it, open it with a good yank.

REMEMBER! This technique is a little tricky and tedious. I have only done it on my lock, a lock belonging to my grandfather, and 3 friends locks. Every time I had full consent to do so. Whether or not you actually manage to open a Combination lock, if you are caught fiddling around with one that is not yours you can be charged. "Playing" With a lock with no intent on opening it is not a suitable grounds for defence.

[mmbapmashida]

Would this work with modern Masterlock combination locks?

[Jow]

modern masters have false "bumps" which make the process a little more difficult.

[Fallen_Pin]

Like Jow said, most modern locks have false contact points which make this a little difficult, but yes, it can be done

[Sabin37]

I discovered something a while ago and I thought I should post it just incase anyone didn't know about it. If you pick open a masterlock via the keyway, you can then determine the first number quite easily. Once the lock is open, rest the latch in the hole but don't click it down. Then turn the dial clockwise until it gets stuck. Using the rule that the first number has the same remainder as the last number when divided by 4, you can then make a list of the possible first numbers(If the last number is 26, the first number could be 2,6,10,14,18,22,26,30,34,38 ). Whichever number the dial got stuck on, the first number on your list to the right of the stick point is the first number. I've done it on a few different Master locks and it has worked every time. The only way this would actually be useful is if you were in a rush to open the lock and then wanted to get the combination after. Also, after the lock is open you can look inside the lock as you turn the dial to determine the second number. I suggest practising on a lock you already know the combination to so you know what you're looking for. Let me know if this works for you.

[Fallen_Pin]

I'll be sure to try that out if I ever get some combination locks to practice on , for the most part though, I've only been at my school doing this to friends lockers, and I sure as heck am not bringing my picks there! (anymore that is, messing around with the wafer locks in the bathroom has weilded all the information that they can)

[skold]

i personally wouldn't bother opening combo-locks, i can do it but it can be annoying and time consuming, the ones with they key hole on the other hand are easy and quick, and you can buy master keys that fit them all..aussie locksmiths can get all 5 to every lockwood combo padlock that contains the keyhole at the back.. if only i had them...

[TOWCH]

You could impression them.

[skold]

yeah, i have access to the keyblanks, well used to, i just need to know which ones are which. eg number 1 - 5