Designed by a hacker, the "Combo Breaker" can figure out a lock's combination and get the thing open in less than 30 seconds.

The video shows how to open a standard four-digit bike combo lock by looking for the gaps between the numbers. Obviously you should only use this hack for your own lock (and not for stealing bikes).

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 ...