The U.S. Treasury Department sanctioned two crypto exchanges it says helped Iran move money outside the traditional banking system, widening Washington's campaign against digital asset networks allegedly funding the Islamic Revolutionary Guard Corps (IRGC). The Treasury’s Office of Foreign Assets Control (OFAC) targeted Shelbit Exchange and Iran-based Aban Tether, according to a Friday press release. IRGC-linked wallets sent more than $1 million in crypto to Shelbit addresses while more than $2 million flowed from Shelbit addresses to IRGC wallets, the Treasury said. Wallets belonging to or controlled by Kayvanpour also sent over $2 million to Nobitex, Iran's largest crypto exchange, according to the Treasury. Aban Tether has processed millions of dollars in transactions involving sanctioned Iranian exchanges, including Nobitex, Wallex, Bitpin and Ramzinex, the press release added.