[mottosso]

Does this affect other countries working with Iran? I run a small software startup in the UK and am currently in communication with an Iranian developer about doing remote contract work and I’m struggling to understand whether any of this applies to us, or whether it is strictly between Iran and the US?

[PoignardAzur]

They can't put you in jail, but if you violate US sanctions they can put you on a blacklist that no US business is allowed to deal with (assuming they notice you, and you get caught).

It's up to you to decide if that threat is enough to intimidate you. Most people won't blame you if it does.

(Also, probably talk to a lawyer)

[Santosh83]

Well the letter of the law wouldn't apply since it is US law, but in spirit I guess all Western countries are expected to treat US's "enemies" as their enemies too. But the CIA won't be having tabs on you unless you're a billion $ company recruiting Iranians.