Which of the following is not true regarding security doors as barriers?

The assertion that the door is typically stronger than the surrounding structure is not true because, in many cases, the door may not be as strong as the frames, walls, or other components of the surrounding structure. Security doors are designed to provide effective barriers, but their overall strength and effectiveness as a security measure depend significantly on their installation, components such as locking hardware, the quality of the doorframe, and proper hinge installation.

Doors can be constructed from robust materials, but if the doorframe or surrounding structure is weak or improperly installed, it creates vulnerabilities that can be exploited. Therefore, while the door itself may be an important part of a security system, emphasizing the strength of the door over the surrounding structure can mislead one about how effective the entire security barrier is. This highlights the importance of an integrated security approach, where all components, including the door, frame, hinges, and locking mechanisms, are considered for overall strength and effectiveness.