There are more than 20 million smartkey technology locks sold every year. One of the main selling points of the smartkey technology locks is that it has a reprogrammable cylinder that gives owners the ability to reprogram the locks to any key. This feature can be used by apartment managers to change a door lock after a resident vacates or a building manager is terminated, without having to swap out the actual lock or call a locksmith. It can also be used by homeowners to provide temporary access to someone who needs to gain entry to their home for a certain period of time, after which the locks can be changed back to fit the original key. It's a great selling point and consumers fall victim to the "smartkey technology" all over the front of the packaging which leads them to believe they are getting a great high tech high security lock which couldn't be farther from the truth. The truth being that these locks are very insecure and can be be opened in 15 seconds or less with a screwdriver and a pair of pliers. It's not a pin-tumbler lock so that it doesn't have the inherent physical strength to block the plug from turning when you do certain things.
Do yourself a favor and stay away from the smartkey technology locks. They are not secure and can fail at any time often leaving customers locked out of their homes because the cylinder fails and their key will no longer work and the lock has to be replaced. Also, if you accidentally forget your keys inside and get locked out, there's no picking the lock open since it's not a pin-tumbler lock. The lock will have to be damaged and then replaced. There's nothing smart about buying the smartkey technology locks. These locks are junk and a waste of money.