First, there are 100 numbers so it's 1/1,000,000 to randomly guess the combination in theory (or a sales ploy). However the odds are much better, more like 1/48,000. First, the tolerance of the numbers is plus/minus 1.25. Meaning if the number is 45 I can dial anywhere between 43.75 to 46.25 on the wheel to fall into the gate or a range of 2.5. So 100 x 2.5 = 40 different place to spin the wheel too. Also, the last wheel can't be set to some numbers on the lock, usually 0 - 20. So now we gets the odds of 1/40 * 1/40 * 1/30 which gets about a 1/48,000 possible chance of guessing the combination that opens the safe.
Compare it to a (good quality security pin) Yale pin tumbler. One if the simplest types of locks ever made used on about 90% or so of homes in the western world in it's simplest form (without sidebar etc.). Despite everyone know how they work only very few can pick them and even fewer if you have a timeline of a few minutes.
0-99 isn't 1/99 it's 1/100 (0 = 1, 99 = 100), you can use number '00'. You can use the same numbers twice just the first and third wheel with the same level of security if you had three different numbers. E.g. some factory settings on these combos are set at 25-50-25.
Agree. It's totally irrelevant. Whether you know how it work or not you're not going to crack them in the few minutes a burglary lasts - at least not without training. So you have get the parts you want to learn about and can practice peacefully and thereby see how they work. If one want something complicated get a Chinese puzzle. No lock is very complicated because locks are not puzzles. Locks are straight forward mechanisms designed to be simple and hard to decode from the outside.
The explanation regarding the number of possible combinations is a bit simplistic and somewhat incorrect for most manual dial safe locks. Most safe locks have a certain amount of "slop" built in. Accordingly, if the combination is 14-27-71, anything from 12-16 might be good enough for the first digit. 13 to 15 would be very common. So instead of 100 possible choices, it is more like 34. Also, traditionally the numbers near 0 were less reliable. So it is often safe to assume that on a 100 position lock, 95-05 are not in use. Perhaps nothing between 80 and 20. So assuming no number is between 90 and 10, that leaves 80 spots, divided by three for slop. Call it 27. So while the lock or safe manufacturer may advertise, "1,000,000" possible combinations, in reality, ti may be much closer to 20,000. This is one area where electronic locks dominate. They are much harder to manipulate, can't be attacked by a dialing robot, and don't suffer from slop. So 1,000,000 million combos is really 1,000,000 combos.
Correct me if I'm wrong, but this looks like if you know the first two numbers you don't need to know the third number as you could jsut hold down the lever as dialing through all the numbers.
A safe will usually require you to once again reverse directions once you hit the last number and return to or past 0 in order to actually unlock the safe. Simply stopping at the last number will not do. Of course, there ARE some locks that do function the way you said... for instance, those common high school locker pad locks.
Treblaine I'm not sure what you mean by scrub... I'm assuming you mean to ask if you can keep trying various numbers for the last one? On the kind of safes I was talking about, on the last rotation, you MUST stop at the correct number then change direction. You can't keep turning until you find a number that will unlock when to turn to 0. Once you pass that number the whole thing resets as incorrect. It also resets if you ever change direction at a number that is not a part of the code.
Lady Sinovera I mean by "scrub" for the last number, turn 1 to the left then back to zero, then 2 to the left then back to zero, three to the left. Or would every "to zero and back" reset it? Basically, I'm a game designer, I'm trying to put a safe in the game and give them a novel way of cracking it, assuming part of the safe's code has leaked out.
I wonder how much one of these would cost with the following specs, 72"x40"x27". probably like $10,000 usd since it is solid steel not 12 gauge or whatever china safes are made of. it would also weight like 2 tons or more lol
Could brute force your way in by trying all combinations. Would take a while though. Now if it could be attached to a computer would be done pretty quickly
not true. all the fireproofing material can be hammered away really quickly. it is the steel thickness and the lack of gap at the edges of the door which provide the major part of the security
It is a no no to spin a mechanical dial lock like the man did @4:47 in the video. That’s what leads to a lock failure and lock smith call, something you should NEVER do to a mechanical dial lock
Indeed, 99*98*97=941094, thats assuming you can't use the same numbers twice... I'm not sure if thats correct because he never said you can't pick the same number twice, if you can pick the same number twice then it's 99possiblenumbers*99*99=970299 possible combinations, if I'm missing something obvious here will someone point it out, I never learned the math on crack safes before ^^ I doubt many safes will let you actually try all the combos though lol it would be to easy, arduino crackBot lol
![[1337] My New & Improved Robotic Safe-Cracker…](http://i.ytimg.com/vi/vkk-2QEUvuk/mqdefault.jpg)
![OsamaSon - ik what you did last summer [Official Music Video]](http://i.ytimg.com/vi/4DIQDnu3mr4/mqdefault.jpg)
All I wanted to see was how the lock worked.
Exactly, we know they’re built tough
Same, but I had no idea that they have concrete inside as well to create strength and fire resistance.
First, there are 100 numbers so it's 1/1,000,000 to randomly guess the combination in theory (or a sales ploy). However the odds are much better, more like 1/48,000. First, the tolerance of the numbers is plus/minus 1.25. Meaning if the number is 45 I can dial anywhere between 43.75 to 46.25 on the wheel to fall into the gate or a range of 2.5. So 100 x 2.5 = 40 different place to spin the wheel too. Also, the last wheel can't be set to some numbers on the lock, usually 0 - 20. So now we gets the odds of 1/40 * 1/40 * 1/30 which gets about a 1/48,000 possible chance of guessing the combination that opens the safe.
Compare it to a (good quality security pin) Yale pin tumbler. One if the simplest types of locks ever made used on about 90% or so of homes in the western world in it's simplest form (without sidebar etc.). Despite everyone know how they work only very few can pick them and even fewer if you have a timeline of a few minutes.
Someone made a robot to crack a safe recently! Takes 15 minutes!
And I'm learning how to crack it.
0-99 isn't 1/99 it's 1/100 (0 = 1, 99 = 100), you can use number '00'. You can use the same numbers twice just the first and third wheel with the same level of security if you had three different numbers. E.g. some factory settings on these combos are set at 25-50-25.
Agree. It's totally irrelevant. Whether you know how it work or not you're not going to crack them in the few minutes a burglary lasts - at least not without training. So you have get the parts you want to learn about and can practice peacefully and thereby see how they work. If one want something complicated get a Chinese puzzle. No lock is very complicated because locks are not puzzles. Locks are straight forward mechanisms designed to be simple and hard to decode from the outside.
love this guys videos, way more interesting then How its made, the guy has a good sence of humor too
Thanks for the awesome video!
Now is it legal to make the walls of my house made out of this steel concrete sandwich?
The explanation regarding the number of possible combinations is a bit simplistic and somewhat incorrect for most manual dial safe locks.
Most safe locks have a certain amount of "slop" built in. Accordingly, if the combination is 14-27-71, anything from 12-16 might be good enough for the first digit. 13 to 15 would be very common. So instead of 100 possible choices, it is more like 34.
Also, traditionally the numbers near 0 were less reliable. So it is often safe to assume that on a 100 position lock, 95-05 are not in use. Perhaps nothing between 80 and 20.
So assuming no number is between 90 and 10, that leaves 80 spots, divided by three for slop. Call it 27.
So while the lock or safe manufacturer may advertise, "1,000,000" possible combinations, in reality, ti may be much closer to 20,000.
This is one area where electronic locks dominate. They are much harder to manipulate, can't be attacked by a dialing robot, and don't suffer from slop. So 1,000,000 million combos is really 1,000,000 combos.
Plus there are are people who can crack them by feel.
Correct me if I'm wrong, but this looks like if you know the first two numbers you don't need to know the third number as you could jsut hold down the lever as dialing through all the numbers.
A safe will usually require you to once again reverse directions once you hit the last number and return to or past 0 in order to actually unlock the safe. Simply stopping at the last number will not do. Of course, there ARE some locks that do function the way you said... for instance, those common high school locker pad locks.
Lady Sinovera I guess this is a VERY basic design. But does that mean you can "scrub" back and forth on the last number of the combination?
Treblaine I'm not sure what you mean by scrub... I'm assuming you mean to ask if you can keep trying various numbers for the last one? On the kind of safes I was talking about, on the last rotation, you MUST stop at the correct number then change direction. You can't keep turning until you find a number that will unlock when to turn to 0. Once you pass that number the whole thing resets as incorrect. It also resets if you ever change direction at a number that is not a part of the code.
Lady Sinovera I mean by "scrub" for the last number, turn 1 to the left then back to zero, then 2 to the left then back to zero, three to the left. Or would every "to zero and back" reset it?
Basically, I'm a game designer, I'm trying to put a safe in the game and give them a novel way of cracking it, assuming part of the safe's code has leaked out.
Treblaine Yes, as soon as you turn back to 0 the first time on the wrong number, it will reset the whole thing.
I wonder how much one of these would cost with the following specs, 72"x40"x27". probably like $10,000 usd since it is solid steel not 12 gauge or whatever china safes are made of. it would also weight like 2 tons or more lol
Very cool ! I learn alot with these videos ! :)
Could brute force your way in by trying all combinations. Would take a while though. Now if it could be attached to a computer would be done pretty quickly
dont worry criminals who can crack these safes already know how it works lol
Great video.
Ein Fall für die Kuchenblechmafia.
not true. all the fireproofing material can be hammered away really quickly. it is the steel thickness and the lack of gap at the edges of the door which provide the major part of the security
Sharlize Theron open it in 5 minutes...
It is a no no to spin a mechanical dial lock like the man did @4:47 in the video. That’s what leads to a lock failure and lock smith call, something you should NEVER do to a mechanical dial lock
@superspy0123 Depends on the gun.
Nothing short of a 50cal sniper thou.
Indeed, 99*98*97=941094, thats assuming you can't use the same numbers twice... I'm not sure if thats correct because he never said you can't pick the same number twice, if you can pick the same number twice then it's 99possiblenumbers*99*99=970299 possible combinations, if I'm missing something obvious here will someone point it out, I never learned the math on crack safes before ^^
I doubt many safes will let you actually try all the combos though lol it would be to easy, arduino crackBot lol
What was the name of this TV show?
now show us how science can open the safe without brute force or knowing the combination
locksmiths like me can open it eassilly...I just need a drill
I need a glass with water and can get into most safes
What do you have to knock out to open it? The wheels? Fence? Or the cam?
@803brando its a tl30, you want to drill tl for 30min
Not the most interesting, but still worth it.
Feymann did it in b/w 20 seconds to 800 seconds
Pffft, That will totally blend.
Will a gun get through it?
Sweet!
@wl6309 HIYOOOOO
Качесвени контентыч
Lava and a nuclear bomb can destroy this easily !!! xD
also including the content...
not 99, most can be opened with 0-1, 2-3, 4-5 etc. so only 50ish.
@Viirray Rofl