The Invention Room

The invention room is the room where all the blueprints and armors are kept. This room is under high security and also under high surveillance by Lyna. Therefore nobody is allowed to enter this room without any permission from Stark.

Even if it is a raid on the Stark building, the enemies would first need to acquire the location of the room in order to find it. Even when they do find it, the high security system will initiate the defensive systems to protect the contains within.