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The Trick To Cracking A Master Combo Lock In Eight Tries Or Fewer (Video)
gizmodo ^ | 4-29-2015

Posted on 04/29/2015 5:21:56 PM PDT by Citizen Zed

Look, we all know that Master combo locks are not paragons of security. But, damn, this looks easy. In a new video, hacker Samy Kamkar demonstrates a dead simple trick that he claims can break into most Master combo locks in just a few tries.

It’s so easy because Kamkar has done all the hard work for you, reverse-engineering the lock to narrow down the possible combinations to just eight. All you have to do is go to input three numbers into Kamkar’s algorithm. Here’s how you get the numbers:

1. While lifting the locked shackle, turn the knob counterclockwise starting at the number 0. Between 0 and 11, the lock will “catch” in three places. Two out of three will be straddling a number. Record those two and ignore the one that is not.

2. Now lift the shackle again and turn the knob clockwise, until you encounter resistance. This is is your third number.

You type in these three numbers, and the algorithm spits out the first and third digits of the combination along with eight choices for the second. Now it’s just a matter of trying them all.

(Excerpt) Read more at gizmodo.com.au ...


TOPICS: Chit/Chat
KEYWORDS: security
A hammer also works.
1 posted on 04/29/2015 5:21:56 PM PDT by Citizen Zed
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To: Citizen Zed

Eight tries? Bolt cutters work in one.


2 posted on 04/29/2015 5:26:21 PM PDT by jy8z (When push comes disguised as nudge, I do not budge.)
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To: Citizen Zed
Tips brought to you by Corporal Newkirk:


3 posted on 04/29/2015 5:27:50 PM PDT by DeoVindiceSicSemperTyrannis
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To: jy8z

Hammer or breaker bar. One shot kill


4 posted on 04/29/2015 5:31:16 PM PDT by Melinator (my 2 cents)
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To: jy8z

I’ll give this a test.. I have a bunch of old locks I have forgotten the combination.


5 posted on 04/29/2015 5:31:26 PM PDT by Chainmail (A simple rule of life: if you can be blamed, you're responsible.)
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To: Citizen Zed

I remember doing the exact same thing in Jr. High.


6 posted on 04/29/2015 5:31:56 PM PDT by ImJustAnotherOkie
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To: Chainmail

CRS is terrible, isn’t it?


7 posted on 04/29/2015 5:46:40 PM PDT by jy8z (When push comes disguised as nudge, I do not budge.)
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To: Melinator

Hammer or breaker bar. One shot kill

$$$$$$$$$$$$$$$$$$$$$

Yep. I followed Rocky’s lead once in college and used a fire extinguisher. BAM! The lock even re-locked when I was done.


8 posted on 04/29/2015 5:50:00 PM PDT by Eccl 10:2 (Prov 3:5 --- "Trust in the Lord with all your heart and lean not on your own understanding")
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To: Eccl 10:2

Lol. Leverage is your friend.


9 posted on 04/29/2015 6:13:11 PM PDT by Melinator (my 2 cents)
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To: Eccl 10:2

Where i come from it’s called the “master key”.


10 posted on 04/29/2015 6:14:34 PM PDT by Melinator (my 2 cents)
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To: jy8z

Smart alek! Let’s see how you do when you get to my age..


11 posted on 04/29/2015 6:15:02 PM PDT by Chainmail (A simple rule of life: if you can be blamed, you're responsible.)
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To: Eccl 10:2

They dont re-lock when i’m dome. They dont even look like a lock anymore.


12 posted on 04/29/2015 6:17:21 PM PDT by Melinator (my 2 cents)
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To: Citizen Zed

Fifty years ago we were warned not to buy SLAYMAKER brand locks for our gym lockers as they were junk.

Unfortunately, Slaymaker was the only brand the local store handled.


13 posted on 04/29/2015 6:27:13 PM PDT by Ruy Dias de Bivar (Some times you need more than six shots. Much more.)
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I still use a Master lock from my gym locker (25 years old or so) it wss handy to test this.

Tried and the suggestions were nowhere near the correct combo.

Unless you added one to one of the suggested #2 numbers and #3 number, subtracted one from the #1 number. (Could be “play” from 25 years of use) Then enter the combo in the order #3, #1, #2.... which I don’t think is right.


14 posted on 04/29/2015 6:28:43 PM PDT by PrinterEagle
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To: Citizen Zed
A hammer also works.

You can cut a "shim" out of a soda can that will do the job with no dial tinkering at all. Video on you tube unless its been yanked. It works on regular "keyed" locks as well. You can also use "shims" to unlock handcuffs.

Regards,
GtG

15 posted on 04/29/2015 6:29:44 PM PDT by Gandalf_The_Gray (I live in my own little world, I like it 'cuz they know me here.)
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To: Gandalf_The_Gray

Shim version http://youtu.be/jY_Q7nK6550


16 posted on 04/29/2015 6:42:56 PM PDT by Citizen Zed ("Freedom costs a buck o five" - Gary Johnston, TAWP)
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To: Chainmail

Thank you for your service to our country, I really do appreciate all that have served. And I’m no spring chicken myself. In my seventh decade on this rock we call earth.


17 posted on 04/29/2015 7:32:24 PM PDT by jy8z (When push comes disguised as nudge, I do not budge.)
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To: Citizen Zed

I bet some of the fine citizens of Baltimore can crack it in fewer than 8 tries....


18 posted on 04/29/2015 8:14:22 PM PDT by usafa92 (Conservative in Jersey)
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To: Citizen Zed

A rifle works
https://www.youtube.com/watch?v=wk8aLmXWdfI

How to Open a Padlock with a Coke Can - it took 25 seconds.
https://www.youtube.com/watch?v=fRjNnnLOpmE


19 posted on 04/29/2015 9:02:37 PM PDT by minnesota_bound
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