Most security experts agree that a single outer door lock will not provide adequate protection. For example, any tumbler-type lock with an opening for a key also provides an opening large enough for the lock to be picked. Thus, a combination of two different types of locks are recommended. Here are the most common types of locks used in the home:

To ensure your home is lit for security, make two plans for each room - one plan for when you're at home and another for when you're away.