Featuring a four-digit combination lock, it eliminates the need for keys, offering over 10,000 resettable combinations for tailored security. ... Amtech T0765 50mm Long Shackle Weatherproof Padlock .

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 ...

To release the shackle on a Master Lock combination lock, you typically need a sequence of three numbers, each between one and 40. There are 64,000 possible combinations you'd have to run through ...

Kamkar's robot consists of little more than a stepper motor, an Arduino chip that runs his cracking algorithm, a lever to pull the shackle, a rotor with a 3-D printed attachment to the lock's face ...