Meanwhile, Andy was still immersed in hacking the base’s system. He learned that the security system of the military warehouses was not as simple as he had thought. That was to say, he was unable to guarantee that he could open every warehouse door through his hacking. This was also something the army had implemented on purpose. The IT network was so developed, making lots of things more convenient, but if everything depended on this, once the enemy cracked the system then the whole defence was gone, crushed like a stone through the paper. Hence the armies of most major nations used an operating system that their own technicians had developed independently, instead of Windows, which was developed by State M. If they used another system, they were putting their lives in someone else