Tether, the issuer of the world's largest stablecoin USDT, has frozen $344 million worth of USDT connected to the Central Bank of Iran. The move was confirmed on May 13, 2026, after blockchain intelligence firm Arkham Intelligence deanonymized and publicly labeled the wallets as “Suspicious” and “Government.” The funds, totaling over $344 million in frozen Tether along with smaller amounts of HTX and TRX tokens, were allegedly used to circumvent international sanctions amid mounting geopolitical pressure.
Arkham’s public labeling now provides permanent, on-chain identifiers for the Central Bank of Iran’s addresses, enabling exchanges, platforms, and blockchain companies to track and block their activity across networks. Tether, which collaborates with over 340 law enforcement agencies across 65 countries, has previously assisted in freezing more than $4.4 billion in assets. This action underscores the centralized control that stablecoin issuers wield—unlike decentralized cryptocurrencies, Tether can directly freeze wallets, a capability increasingly scrutinized by regulators worldwide.
Iran’s central bank has been under U.S. sanctions since 2018, with counterterrorism-related restrictions added in 2020. The incident highlights the growing intersection between crypto compliance and international sanctions enforcement, while raising questions about the balance between censorship resistance and regulatory adherence in the stablecoin sector.
