U.S. adds four Iran central bank crypto wallets to sanctions, Tether freezes $131 million of contents

The U.S. Treasury has sanctioned four crypto wallets linked to the Central Bank of Iran, prompting Tether to freeze $131 million in USDT held within those accounts. This action is part of ongoing efforts to prevent the Iranian government from using stablecoins to bypass international sanctions and support state-aligned military groups.
Why it matters
It demonstrates the increasing role of stablecoin issuers as gatekeepers in global financial compliance and their cooperation with U.S. foreign policy objectives.
The four Tron-blockchain wallets had received more than $165 million in stablecoins, according to Chainalysis . Tether blocked $131 million in USDT held by the accounts, though some of the funds had moved before the freeze.
The report objectively details regulatory actions and the technical response from the stablecoin issuer without editorializing the geopolitical conflict.
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