system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Does Tony know that it was Wanda that poisoned his mind to create Ultron?

Its never brought up again....so is it safe to assume that Wanda has not told anyone that she hasn't told anyone? Has she sworn off of her telepathy/mind manip powers due to its disastrous effects? 

The more that I think of this is the more that I think it would have been cool if this was a subplot under this. I think quarantining Wanda or even trying to extradite her to be indefinitely detained would make a lot more sense after what she did to his mind.
gpt
She didn't poison his mind, she just gave him a vision of his worst fears, in this case it was that he couldn't protect Earth from the Chitauri. Since she pulls the same trick on the other Avengers later on in the movie and they figure out it's her I'd assume Stark figured out what happened to him as well.