U.S. Treasury's OFAC sanctioned Nobitex, Iran's largest cryptocurrency exchange, for facilitating payments related to terrorist activities and helping evade economic sanctions. Nobitex processed more than 50% of all Iranian digital asset inflows in 2025 and facilitated transactions linked to the Islamic Revolutionary Guard Corps (IRGC), including IRGC-affiliated ransomware actors. The exchange helped the Central Bank of Iran access hundreds of millions of dollars in stablecoins to prop up the Iranian rial. The Iranian crypto ecosystem received nearly $7.8 billion in 2025, with IRGC-associated addresses accounting for over 50% of value received in Q4 2025. Sanctions also targeted three other Iranian exchanges: Wallex (12% of inflows), Bitpin (10% of inflows), and Ramzinex.