The US has charged 9 Iranians with conducting a massive cybertheft campaign on behalf of Iran’s Islamic Revolutionary Guard Corps, and imposed sanctions on them, a related company, and one other. In the Department of Justice’s press release, Deputy Attorney General Rod Rosenstein accused the 9 people of stealing “more than 31 terabytes of documents and data from more than 140 American universities, 30 American companies, 5 American government agencies, and also more than 176 universities in 21 foreign countries. He added that in many cases they acted “at the behest of the Iranian government”.
As a result of the sanctions, the assets of the Mabna Institute, the 9 Iranians connected to it, and Behzad Mesri, who is the subject of a US indictment announced in November 2017 for cybertheft, are frozen and US people are generally prohibited from doing business with them. The US Treasury’s press release is here, and the details of the sanctions are here.