Four words: "Need to know basis". It's entirely possible many of the component parts needed for this were developed as "black box" (i.e., they were told not to

Four words: "Need to know basis". It's entirely possible many of the component parts needed for this were developed as "black box" (i.e., they were told not to ask questions as to why this was being developed, and the developers just assumed it would be used on a foreign network.) This is done commonly for graduate students working on weapons research in government labs who do not have the appropriate clearance, for instance. They need to know an explosive force is acting a certain way to model their calculations, but never is the student told exactly who or why that explosive force might ever occur. In fact, they may be told it's a completely theoretical exercise. A surprisingly small number of people are actually needed to "deploy" something like this in the wild, if you're willing to pay for enough testing to ensure your black boxes work exactly as promised...