U.S. Sanctions Iran-Linked Crypto Wallets Holding $344 Million Frozen by Tether

The U.S. Treasury Department's Office of Foreign Assets Control sanctioned multiple Iran-linked cryptocurrency wallets on April 24, 2026, freezing $344 million in USDT that Tether had blacklisted one day earlier following a law enforcement request. Treasury Secretary Scott Bessent framed the action as part of 'Economic Fury,' a broader campaign to eliminate financial lifelines for the Iranian regime, which has increasingly turned to cryptocurrency to bypass sanctions restrictions. The sanctioned wallets showed material links to Iran's Central Bank and routed transactions through intermediary addresses to mask cross-border payments. The Treasury also sanctioned Hengli Petrochemical (Dalian) Refinery Co., a China-based refinery accused of playing a major role in Iran's oil economy, demonstrating coordinated pressure on both digital and traditional financial channels.

U.S. Treasury Sanctions and Cryptocurrency Freeze Targeting Iran

• ▪The sanctioned crypto wallets routed transactions through intermediary addresses connected to wallets associated with the Central Bank of Iran
• ▪The U.S. Treasury Department sanctioned Hengli Petrochemical (Dalian) Refinery Co. on April 24, 2026, accusing the China-based refinery of playing a major role in Iran's oil economy
• ▪Stablecoin issuer Tether blacklisted two blockchain addresses on Tron holding $344 million in USDT on the day before April 24, 2026
• ▪The U.S. Treasury's Office of Foreign Assets Control works with blockchain analytics firms to track illicit flows tied to sanctioned entities
• ▪The U.S. Treasury Department sanctions on Iran-linked crypto wallets resulted in the freeze of $344 million in cryptocurrency
• ▪The U.S. Treasury Department's Office of Foreign Assets Control (OFAC) sanctioned multiple crypto wallets linked to Iran on April 24, 2026

Iran's Use of Digital Assets to Evade Sanctions

• ▪Iran's Central Bank of Iran has been using digital assets to mask cross-border transactions

Broader 'Economic Fury' Campaign Against Iranian Financial Networks

• ▪Treasury Secretary Scott Bessent announced the U.S. is seeking to choke off all financial lifelines for the Iranian regime
• ▪The U.S. Treasury Department's sanctions on Iran-linked crypto wallets are part of a broader campaign dubbed 'Economic Fury'

Perspective of U.S. Treasury Department

• ▪The U.S. Treasury's April 24, 2026 actions demonstrate increased capability to track and freeze digital assets linked to sanctioned regimes

Perspective of Tether

• ▪Tether's ability to freeze $344 million in USDT illustrates centralized control over stablecoin assets despite blockchain technology
• ▪Tether's freezing action on April 23, 2026 preceded the formal OFAC sanctions announcement by one day

Perspective of Cryptocurrency industry observers

• ▪The $344 million freeze demonstrates that major stablecoin issuers function as de facto extensions of U.S. financial enforcement policy