Quote Originally Posted by gaelic cowboy View Post
I already mentioned it see below the bolded bit from my earlier post

A disruption to SCADA like this would slow it down a lot as they would have to replace all the controlers in every plant. However they will just buy new ones and ensure there properly checked and they will have to ensure proper controls on USB sticks etc.

Course they might ditch those kinds of controllers altogether but it would require a massive overhaul of the architecture of the plants and achieve the delay US wants.
Woah. Somehow I didn't see that part of your post. Sorry. But yeah, as long as they can make a virus to get in, wouldn't they be able to severely delay Iran's efforts as long as they wanted? They switch out the controllers and then they just infect those with a new virus causing more damage.