I mean, it's probably going to be a very secure number. From my understanding it's not something you could just have a computer try and bruteforce, and a human

I mean, it's probably going to be a very secure number. From my understanding it's not something you could just have a computer try and bruteforce, and a human being at the weapon system isn't likely to go "gee, I bet it's all zeros!" they're likely to think "well, I can guarantee it's not all zeros!"