So you mean any transaction coming in or out from those sanctioned countries will be taken as terrorist funding!!! It's new for me, well, IMO that's not how things should go, as transactions should be checked thoroughly like for what purpose it was used, I mean who sent it and who received it. Does the receiver belong to a bad actor in the community and using that money for bad purposes?
And how do you think this would work?
I can see how the US government calls Iran and asks them
-Stop lobbying rockets for a while and do tell us, is Hashem Soleimani the guy who is smuggling chips or was that Masem Souleimani, we have 500k pending and we need to know if this is college money or bomb money!
It's sanctioned "countries" for a reason, otherwise, you would only have sanctioned 'individuals" who would do all those transfers with their wife/son/nephew account.
Put the question otherwise, if you know a country is against you using one of their companies, why do you still want to use it?