Perhaps in the future this will change, but even if that is the case, that's still a win for the defenders. Having a time advantage, even for a few months, is still a win.
Edit: Actually, the CIA/FBI/NSA/Etc.. does probably have access and are probably trying to hack Iran and so forth, so my comment above is probably technically wrong in that respect.
I think it's not "blackhat" in that sense because it's officially sanctioned. Same goes for equivalent models overseas.
The only thing these embargos achieve is giving massive nations a huge advantage, but leaves the average country and person exposed.