My comment is not arguing whether a state actor breached FireEye, but whether only a state actor could breach FireEye as they are implying as nobody else could

My comment is not arguing whether a state actor breached FireEye, but whether only a state actor could breach FireEye as they are implying as nobody else could fund or develop such a "sophisticated" or "advanced" attack. If it is at most $1M as you say, then you are actually agreeing with me as that would hardly constitute something that only a "state actor" could do given that literally any mid-sized business, of which there are millions, could support such an expense. To actually demonstrate that it is so difficult to develop that "only a state actor" has the resources to develop/deploy such an attack should require demonstrating that it is out of reach for all but a state actor for which a $1B budget is likely a good bottom-end as only a very small number of non-state entities can actually support such an effort. I hope that clarifies my point.