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U.S. Treasury Freezes $131 Million in Iran-Linked USDT

The action uses Tether’s issuer controls to lock dollar-pegged tokens and seeks to deny Tehran access to dollar liquidity on public blockchains.

Overview

  • Treasury’s Office of Foreign Assets Control added multiple wallets tied to Iran’s central bank to its sanctions list, and Treasury officials said the designations resulted in more than $130 million in USDT being frozen on the Tron network on Tuesday.
  • On-chain analysts identified four Tron addresses that held roughly $131 million in Tether USD (USDT) and reported that Tether implemented issuer-level freezes that prevent those tokens from being transferred or redeemed.
  • Officials framed the action as part of Operation Economic Fury, Washington’s sustained campaign that has already produced an April freeze of about $344 million in USDT and June sanctions on Iranian exchanges that acted as on-ramps.
  • Investigators traced flows into the frozen wallets through intermediaries such as DTC Pay and Bitso and linked transaction patterns to the Central Bank of Iran and IRGC-related actors, showing how public ledger data aids enforcement.
  • The freeze increases pressure on Iran’s ability to obtain dollar liquidity outside banks and could raise compliance burdens for stablecoin issuers and exchanges while occurring as U.S.–Iran military tensions have returned to higher levels.