The U.S. Justice Department announced Tuesday that it has filed a civil forfeiture action to seize more than $61 million in cryptocurrency, primarily USDT, from accounts on the Binance exchange. The funds allegedly came from black market Iranian oil sales and were moved through a sophisticated money laundering operation with a total volume of around $1.5 billion.

According to the complaint, two China-registered companies—Hexa Whale Trading and Blessed Trust—operated trading accounts on Binance and allegedly served as a conduit for transferring funds from oil sales directly to Iran’s Islamic Revolutionary Guard Corps. The money was intended to finance military activity and terrorism-related operations, prosecutors say. Binance itself is not accused of wrongdoing in the case. The company said it cooperated fully with U.S. authorities and that the accounts of the companies involved were blocked and closed on the platform before the case became public.
The move is part of a broader U.S. effort to tighten economic pressure on Iran and prevent funds from reaching the regime and the Revolutionary Guards. Under an operation dubbed “Operation Economic Rage,” U.S. authorities have already frozen and seized Iranian crypto assets totaling around $1 billion across various networks, according to reports.

The Blockchain Exposed Them
The interesting aspect of the case is precisely how authorities managed to trace the funds. Despite attempts to disguise their origin and move them between different accounts and wallets, transactions on blockchain networks leave behind a record that can be analyzed.
By analyzing the movement of funds on the blockchain, investigators were able to trace the money trail and find connections between the accounts and the parties involved. What was supposedly intended as a tool to hide the money became, to some extent, a tool that allowed authorities to locate it.
The case illustrates one of the central paradoxes of the crypto world: on one hand, digital assets can be transferred quickly across borders, and layers of wallets and accounts can be created that make it difficult to identify the source of funds. On the other hand, unlike physical cash, many blockchain movements are recorded publicly and can be analyzed long after they occur.
In this case, the digital record allowed U.S. authorities to narrow the space for concealment, track the movement of funds, and ultimately act to freeze and seize them. For law enforcement, the blockchain isn’t just infrastructure for moving money—it’s also a significant source of intelligence in the fight against money laundering and the financing of prohibited activities.
