A weakness in combination master locks

[010203]

Ive been recently picking up lock picking and breaking combos as a hobby. I like to learn little tricks that most people dont know. I came across this instruction on how combination locks work, so i watched it, but then a weakness was shown in combination master locks. Master locks are the most common, so this could apply. If you are somewhere where there are a row of locked lockers or a lot of combination locks, and you use this quick method, it could provide you with more bad ideas. Go to 3:00 in the video for this weakness, but the rest of it is very informative on how these locks work.

[youtube]CZ8WRDVgKrk[/youtube]

[FireStarter]

Its a neat trick, but it relies on the user just closing the lock and walking away. Most people that I've seen put a combo lock on things close it and spin it a few times. I suppose you could get lucky with this trick though.

[010203]

Originally Posted by FireStarter

Its a neat trick, but it relies on the user just closing the lock and walking away. Most people that I've seen put a combo lock on things close it and spin it a few times. I suppose you could get lucky with this trick though.

yeah its not perfect, but say you were in a locker room with 40 kids who had gym class. Ive had lockers separated by class. So just sitting in the bathroom, and have all the kids leave, you come out just do this to 39 lockers in a row, you will probably get at least 4 or 5. And with those 4 or 5 i wouldnt be surprised if one had a wallet or an ipod. Like i said before, its not perfect, but the alternative is using bolt cutters, picking the lock, angle grinder, explosives, doing math to figure out the combination.

This is an easy to use technique, you could do this a lot with the amount of time it would take to do it once with another technique.

[-SpectraL]

A lot of these combination locks have a flaw in them where, if the owner of the lock does not spin it at least one full revolution forward or one full revolution backward after locking it, you can then try all 59 possibilities without completing a full revolution... basically having the first two numbers in the combination lock's memory while trying out all 59 possibilities of the final and third digit.

[edit]
lol... I just watched the video and the dude already knew my trick with the Master lock I learned back in 1975 at my own school without anybody ever telling me about it

[010203]

Originally Posted by -SpectraL

A lot of these combination locks have a flaw in them where, if the owner of the lock does not spin it at least one full revolution forward or one full revolution backward after locking it, you can then try all 59 possibilities without completing a full revolution... basically having the first two numbers in the combination lock's memory while trying out all 59 possibilities of the final and third digit.

you really are a wealth of information

[L33tz]

this seems relevant

[010203]

Originally Posted by L33tz

this seems relevant

it looks legit, but step 3 is a little confusing, im not sure if he meant to say columns or something, but i will look at it more.

[Unwanted Prostate Exam]

You can pry the back off them very easy with a canopener or a screwdriver and there's a little latch that you slide while pulling on the lock and it opens. It can be done in under two minutes, if you're good.

[010203]

Originally Posted by Unwanted Prostate Exam

You can pry the back off them very easy with a canopener or a screwdriver and there's a little latch that you slide while pulling on the lock and it opens. It can be done in under two minutes, if you're good.

i havent tried this, but im more interested in doing something unoticed, not breaking so much. I like the skill involved in things like this.

[-SpectraL]

^ Still... it is a weakness.

[010203]

Originally Posted by -SpectraL

^ Still... it is a weakness.

yeah it is, i just like to have people not know what im up to, think i wasnt even there.

Sure someone could steal a document in a filing cabinet in a house, and leave no prints with gloves.

But they could also steal the document and leave no prints by burning down the building.

If im breaking into something, i treat it like i was never there, and i could return again with no trace. Sure it would be cool to steal a register that had 1000 dollars in it by breaking a window, but what if you could sneak in every night and steal 100 without them noticing. Sure you wouldnt get as much gratification, but in the long run you would make more money.

[L33tz]

Originally Posted by Pope John Paul MCCCXXXVII

it looks legit, but step 3 is a little confusing, im not sure if he meant to say columns or something, but i will look at it more.

I at first didn't get it but he means look for your number you found in the first step and find it in one of the third rows.(it is only in one of them) then just do the first number in first row and first number in second row. then do same first number and the next second row number. repeat till u get the combo.

[L33tz]

Originally Posted by Pope John Paul MCCCXXXVII

yeah it is, i just like to have people not know what im up to, think i wasnt even there.

Sure someone could steal a document in a filing cabinet in a house, and leave no prints with gloves.

But they could also steal the document and leave no prints by burning down the building.

If im breaking into something, i treat it like i was never there, and i could return again with no trace. Sure it would be cool to steal a register that had 1000 dollars in it by breaking a window, but what if you could sneak in every night and steal 100 without them noticing. Sure you wouldnt get as much gratification, but in the long run you would make more money.

hmm life is the ultimate video game isn't it.

[010203]

Originally Posted by L33tz

I at first didn't get it but he means look for your number you found in the first step and find it in one of the third rows.(it is only in one of them) then just do the first number in first row and first number in second row. then do same first number and the next second row number. repeat till u get the combo.

ok i think i got it now, but once im done with 0-0-4 and then i go to eventually 0-38-4 if that doesnt work, i go to 4-0-4 then 4-6-4, and 4-10-4?

like that?

I wouldnt be asking you if i didnt think this was useful or interesting.

Have you used this yourself?

[Unwanted Prostate Exam]

Also, Since we're talking about skill and finesse, I notice that you want to open the less beefy masterlocks. If it's clipped on to a locker, you can kick downward and catch it on the dial. Do that a few times with boots and bam the lock is opened.

Sure it doesn't take much brain but it does the job and does it quickly.