Security doors can be over come by a variety of tactics. It weighs 15 pounds and will open any door in seconds. However these tactics are those of the rank amateur. More experienced criminals choose to simply pop the lock with the aid of a pry and hook used to trip the latch. Most are locks are lever locks or pin-tumbler.
Door chains are worthless.
This device pulls the tumblers out of any lock quickly and quietly. Remember, an intruder can get through any gap larger than a human head. Few consider security shutters. Fewer glazed windows that are shatter-resistant. Louvered windows or panes can be easily slid out .