The most popular locking mechanism in the world utilizes the pin tumbler design, first developed 4000 years ago in Egypt and then rediscovered and perfected a century and a half ago by Linus Yale. There are billions of these locks in the world and they come in all sizes, configurations, and security ratings. Some are secure; most are not, and even some high security rated cylinders can be easily compromised. All that is required to open many times of pin tumbler cylinders -- the kind of lock that probably keeps the bad guys out of your home -- is a bump key and a tool for creating a bit of force. The bump key shown above opens an extremely popular five pin lock, and the plastic bumping tool is produced by Peterson manufacturing, although many others are now being offered for sale. With these two cheap implements, anyone -- and I do mean anyone -- can get into your home or business in a matter of seconds.For the rest of this story from engadget.com - and a video demonstration - click here.
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