If you use a Master combination lock at the gym, you might need to reconsider it after reading this post. “Serial hacker” Samy Kamkar figured out the technique after fiddling with a previously known ...

There's a vulnerability in Master Lock branded padlocks that allows anyone to learn the combination in eight or fewer tries, a process that requires less than two minutes and a minimal amount of ...

Bill Johnson is now attracting a global following thanks to his YouTube campaign against Master Lock — offering a veritable how-to on ways to open its padlocks without a key.

Or want some incentive to not use a Master padlock? There’s a website for that. The video above from Samy Kamar shows how you can crack any Master combination lock within eight tries.

Some are so simple that this process can even be automated, as [Mew463] has shown by building a machine that can open a Master combination lock in less than a minute.