It stands to reason that your security is only as good as your security measures. Many places use a simple keypad entry system, with a 0 to 9 pad containing 10,000 combinations! However, in this case the chances of tapping in the right combination has been reduced to just 256 combinations. As you can see from this image the chances are cracking this lock is a lot easier and would require much less time than an unmarked keypad. We found this on Picrail, where there are plenty of other cool images to check out too.