The US Treasury has frozen more than $130 million in cryptocurrency connected to Iran, targeting four Tron wallets that held approximately $131 million in USDT. The action comes as Washington intensifies measures against sanctioned groups using digital assets.
Tron wallets targeted in sanctions effort
According to Secretary Scott Bessent, the Treasury issued the freeze order following on-chain data and analysis from blockchain investigator Specter, which identified wallets with ties to the Central Bank of Iran. The wallets were subsequently frozen by Tether, the company behind USDT, acting in coordination with US authorities.
Bessent explained that these wallets had been linked to financial operations supporting Iran’s government. He stated that the Treasury Department seeks to prevent Iran from exploiting cryptocurrencies to bypass traditional financial restrictions.
In a statement, Bessent emphasized the US Treasury’s commitment to disrupt and degrade “Iran’s illicit financial activities, including its abuse of digital assets.”
The targeted Tether wallets, which operated on the Tron blockchain, represent one of the largest cryptocurrency freezes related to Iran to date. Tron is a blockchain-based decentralized platform known for its speed and low transaction costs, frequently used for issuing tokens such as USDT.
Mini dictionary: Tether (USDT) is a widely used stablecoin pegged to the US dollar. It operates across several blockchains, including Tron, and facilitates fast and stable digital transactions, often used in international settlements and in markets where local currencies are unstable.
| Blockchain | Asset Frozen | Recipients Linked |
|---|---|---|
| Tron | $131 million USDT | Central Bank of Iran |
Mounting US-Iran tensions
The freeze coincides with escalating tensions between the US and Iran following the collapse of a ceasefire agreement. The situation has seen the US imposing fresh sanctions on Iranian ports, while American military officials have reported new operations against Iranian interests.
Meanwhile, Iranian military sources claimed that drones had targeted US military installations at Jordan’s Al Azraq Air Base, highlighting the growing conflict in the region.
Broader enforcement and industry cooperation
The latest Treasury action adds to a pattern of increased enforcement targeting digital assets used by sanctioned states. In April, Tether froze assets worth over $344 million in USDT at the request of US officials.
Bessent also revealed that US authorities confiscated roughly $1 billion in cryptoassets tied to Iranians in May, as part of Operation Economic Fury. Launched in March 2025, the operation focuses on intercepting funds used by Iran for military and weapons procurement.
The Treasury’s efforts are supported through close coordination with blockchain firms such as Tether, which have proven instrumental in uncovering and obstructing illicit financial channels.
Describing the ongoing enforcement, Bessent said the US will continue to pursue Iran’s financial networks and deny the regime access to revenue streams that support banned activities.
US officials maintain that the freeze of crypto wallets linked to Iran demonstrates the evolving importance of digital assets in sanctions enforcement and underscores the necessity of collaboration between regulators and key industry players.
