Open a Master Lock Without the Combination in 5 to 7 Attempts

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  • Опубліковано 8 бер 2019
  • Professor Justin Cappos from the New York University Tandon School of Engineering demonstrates how to open a Master Lock without knowing the combination in five to seven attempts. Also, learn the vulnerabilities that allow you to open many other types of locks, including a bike lock and a luggage lock. Video shot and edited by Ted Shaffrey.

КОМЕНТАРІ • 81

  • @1Grr8Guy
    @1Grr8Guy Рік тому +19

    2:08

  • @brisaperez7454
    @brisaperez7454 Рік тому +12

    I honestly ran around my house screaming when my lock opened up! Thank you this was so awesome to try and figure out <3

  • @deadduck8307
    @deadduck8307 3 роки тому +25

    Finally! A tutorial on how to do this that isn't just 'I already know the combination, so all I need to do is adjust pressure to make it look right on camera' kind of video. You go into the why and explain well. For reference though, I am a math major so I can see others struggling with the modulo arithmetic, but w/ this I was able to find my old combination so, cheers mate!

  • @freddievaldez6587
    @freddievaldez6587 2 роки тому +19

    Nice, thorough explanation. I still can't open mine but your video gives me hope.

  • @B.Weedster

    Thanx i saved all my locks i firgit the combos for . Now ill have my locks back

  • @JimmyWorld
    @JimmyWorld 2 роки тому +5

    Great explanation. I was shocked when I finally got it open, as I didn't expect it to work. 😄

  • @guym6093
    @guym6093 4 роки тому +10

    I had a bike lock just like that when I was a kid. I thought I was clever when I removed the keeper spring and jumbled the rings to change the combination. My dad gave it a good pull and popped the keeper spring out and the lock opened. So the combination was "give good pull".

  • @rhm504
    @rhm504 Рік тому +1

    Thank you. I'm waiting on the combo from Master lock, but this worked to solve the lock combo without having to wait. The combo works, so I will get to double check my work once Master lock gets around to replying to my email. Thanks Ted Shaffrey.

  • @Neptune8
    @Neptune8 4 роки тому +73

    I’ve been trying to unlock my old gym lock for 2 hours now

  • @Rebeca92
    @Rebeca92 2 роки тому +3

    I just unlocked my lock . Thank you so much for the video.

  • @TheKittyfizzle
    @TheKittyfizzle День тому

    I jumpscared myself when mine opened. 😂 I've been trying for three days. I really needed to see what was going on inside - not an animation. Thanks for prying that thing open. I want another lock to crack now lol.

  • @climbingmoon

    Thank you, worked perfectly - of course on the last possible option!

  • @victormanuelrodriguezdelar8404
    @victormanuelrodriguezdelar8404 2 роки тому

    Excelente explicación, muchos saludos desde saltillo coahuila MÉXICO.

  • @cbranalli
    @cbranalli 4 роки тому +3

    while listening to this scholarly dissertation on modulo 4 math applied to master lock combinations -

  • @MangalFaisal
    @MangalFaisal 2 роки тому +1

    This video finally made me remember my code combination.

  • @wb9tpg1
    @wb9tpg1 2 роки тому +5

    I wanted to thank you for your video. My lock was really rough and I couldn't decipher Number 1 but could make out number 3 clearly. So I used your rules to create a spreadsheet of possible Number 1 and 2s based on the rules you presented which resulted in 56 possible combinations. It was the 44th one in my list that opened it. I'm stubborn enough to see if I could only open one only feeling the 3rd number and I guess you can. Thanks

  • @akulahwoihan
    @akulahwoihan 2 роки тому +1

    I have master lock...and been trying for 7days already....tq...nxt video plss...

  • @bellsrainee
    @bellsrainee Рік тому

    i could only find the first one but did a quick bit of calculating and a good soul read of my lock and figured it out!

  • @weejohnbb
    @weejohnbb 4 роки тому +2

    I was waiting for your Leatherman to break prying like that. Glad it didn't.

  • @NinTheFolf
    @NinTheFolf Рік тому +1

    THANK YOU for explaining in detail why things work the way they do. Every other video did not help me and seemed to be happenstance that they could unlock it. This made a lot more sense to me and with it I was able to get my childhood lock back open.