I don't believe so much that something like "ex-defense and ex-security" exists, once you are in the defense and security sector that's a no way back. It could be that they have the military in stealth mode behind. This also would explain why they are not making ICOs and seeking money the usual way - with their project they could easily raise up to one billion USD in the cryptospace alone.
I think they are not fool enough to have ex-defense and ex-security guys and then run in stealth mode for military stuff kind of things. I had the chance to speak with one of their developers, they make money giving deployment licenses to private financial institutions. what they have as of now is only a consensus algorithm.