They aren't/ can't use the code in any case. They can use it to see how it was done and create an alternate implementation without using any of the original co

They aren't/ can't use the code in any case. They can use it to see how it was done and create an alternate implementation without using any of the original code/ binaries. Worse case, they can build a model of what is done and describe that to a third party who has never had access to the code in question. Essentially forming an information firewall.