Wednesday, July 8, 2009
Lock Bumping Threat Make Security Systems A Necessity
Lock Bumping isn't just a threat, but a reality that leaves every home protected with just an ordinary lock vulnerable to unforced access and the theft of their hard earned possessions. The mechanics of most locks have been around for centuries. These locks work on a pin and tumbler system. When a criminal uses a key that has been altered so that the valleys have been filed to the shear line, it creates a bump key. The key must match the manufacturer original key blank. These key blanks can not be obtained unless you are a registered locksmith, so criminals will file a key down that matches that particular lock brand. The reason bumping works is due to the mechanics of the lock mechanism. When a key is inserted in a lock, the pins that match the valleys of the key are aligned allowing the lock mechanism to turn. When a bump key is used it is inserted one notch from full insertion and then struck, which forces all the pins to jump slightly and with slight pressure on the key allows the lock to open. Trusting a regular lock is not enough. Some simple solutions are magnetic locks, or locks that work on a disk system. However, the best solution is a monitored security system because it can dispatch the local authorities, even if the door is kicked in.