This is a very insightful vlog from a news station. It introduces the idea that mass-produced locks may be a very dangerous item:

http://www.11alive.com/story/news/2015/05/13/deadbolt-danger-who-has-the-keys-to-your-house/27169595/

“Mass-produced locks could result in keys being duplicated and used to enter your home. Here’s how to keep your family safe.”

The article says to bring your coded key to a locksmith like us to be rekeyed. Another option is to get high security locks for your home or office. Whatever service you need, Pop-A-Lock Jacksonville has you covered!