Tether Freezes $344 Million in USDT Linked to Iran Sanctions

On April 23, 2026, Tether froze $344 million worth of USDT through close coordination with the U.S. Treasury's Office of Foreign Assets Control (OFAC) and law enforcement agencies. This action targeted two specific wallet addresses and recorded the largest single asset freeze in Tether's history.

This freeze is directly linked to the U.S. 'Economic Fury' campaign targeting the Iranian regime. It is evaluated as a decisive example showing that stablecoin issuers are functioning as practical enforcement bodies for U.S. foreign policy.

Tether's move suggests that the importance of anti-money laundering and sanctions compliance within the cryptocurrency market has become higher than ever. In particular, the scale of this freeze is double the previous record set in January 2026, causing significant ripples in the industry.

This $344 million freeze is one of the strongest law enforcement support measures Tether has performed to date. Compared to the $182 million freeze recorded in January 2026, the scale has nearly doubled, meaning Tether's surveillance network for illicit fund flows has become even tighter.

The United States is working to cut off all financial lifelines of the Iranian regime, and this action is a key part of that strategy. — U.S. Treasury Secretary Scott Bessent

Secretary Bessent's remarks reaffirm the U.S. 'maximum pressure' strategy to neutralize Iran's missile and unmanned aerial vehicle (UAV) procurement networks. In line with this government policy, Tether is immediately restricting assets identified as being involved in sanctions evasion or criminal networks.

Technical Enforcement and Coordination on the Tron Network

This asset freeze was primarily carried out on the Tron network, reflecting that the network is being used as a major hub for stablecoin transactions. Based on information received from OFAC and U.S. law enforcement agencies, Tether conducted real-time monitoring to block transactions from the wallets in question.

• Tether currently maintains partnerships with over 340 law enforcement agencies in 65 countries worldwide.
• To date, it has supported over 2,300 global cases and continued investigative cooperation.
• Cumulative frozen assets have exceeded $4.4 billion, of which approximately $2.1 billion was at the request of U.S. agencies.

Tether CEO Paolo Ardoino emphasized once again after this action that USDT cannot be a safe haven for illicit activities. He criticized the lukewarm attitude shown by competitor Circle in the past Drift Protocol incident, claiming that Tether's rapid response capability is a key factor in maintaining market trust.

This freeze is expected to deal a significant blow to Iran's major funding routes, such as the oil transport network associated with Mohammad Hossein Shamkhani. Prediction markets see a very low possibility of a diplomatic breakthrough with Iran due to these hardline measures, which sends a strong signal about regulatory compliance across the market.

Experts interpret this incident as a fundamental change in the 'sovereignty' of stablecoins beyond a simple asset freeze. Unlike the early cryptocurrency spirit that championed decentralization and censorship resistance, stablecoins within the institutional system are now strengthening their identity as digital financial assets under the control of state power.