How to Open a Master Lock with No Key or Special Tools

From OutdoorHub:
"opens a Master Lock by simply applying tension and gently tapping it with a hammer. This is a particularly worrisome exploit for two reasons. First, this type of lock is one of the most commonly used in the country. Second, this exploit requires no skill or specialized tools. In fact, you could probably replicate this hack by using a rock instead of a hammer."




120415
articiansays...

Haha.

Basically the same as a bump-lock technique, but their engineering catches the pins for you with no need for a key. Sad.

AeroMechanicalsays...

Sure, that sucks more than usual, but again padlocks aren't for locking up valuable things. They prevent opportunistic casual theft. They're one step above luggage locks--only better than a nylon zip-tie because they can be reused.

If you use this with the intention of keeping out the class of people who might know this trick or bring tools along for their burgling, (like say a $20 bolt cutter that will do for most any padlock) you're doing it wrong.

cryptozsays...

check for same date of manufacture. have you picked a lock yet?... helps understand tension of hold and varied force of taps to move tumblers.

Stormsingersaid:

I dunno...I've spent more than five minutes rapping away, exactly how he does it in the video. And nothing.

Stormsingersays...

Nope, haven't ever picked a lock before, and that might have some influence. But I do understand the basic concepts involved. I did vary the tension and angle of it, as well as tapping location and direction. I used the rate he was using, and my best effort at hitting with the same power.

I'm thinking that the big difference is that mine is a slightly different model: a #5 rather than #3. That said, I thought the difference in the numbers was basically just the size of the shackle. No idea how to check the date of manufacture, and he doesn't appear to have noted the date of his anyway.

cryptozsaid:

check for same date of manufacture. have you picked a lock yet?... helps understand tension of hold and varied force of taps to move tumblers.

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