If Crypto developers know that they are the target of hackers especially the ones from North Korea as this post has claimed, is it not possible for them to prevent any such attacks by maybe recruiting one of such hackers to make their system impenetrable by making sure their system is not vulnerable to all the methods that the North Korean hackers will use. I believe that there are hackers whose job is usually to help companies prevent their severs from being hacked. Are Crypto developers and other targets overlooking the threats on their back and waiting for it to happen first before they take action?