Building entry security door system

Abstract

A security door system for use with an existing building having an existing door. The security door system including a first secure wall and a first security door disposed in the first secure wall. The security door system also including a second secure wall extending from the first secure wall to the existing building and a third secure wall extending from the first secure wall to the existing building. The security door system further including a secure top supported by the first, second and third secure walls to create a first secure area. A method of monitoring and controlling who has access to an existing building. The method includes installing the security door system for the existing building to permit only authorized individuals to enter and permitting access of the authorized individuals to the existing building via the security door system.

Dependencies are inferred from the claim text.