OFAC Targets Iran-Linked Crypto Transfers in Sweeping Sanctions Expansion

The US Treasury widened its sanctions net this week, and Iran's cryptocurrency sector is at the center of the move. The Office of Foreign Assets Control issued a new determination that gives it authority to sanction any individual or company anywhere in the world doing business with Iran's digital asset industry.

That is a shift in approach. Earlier sanctions typically targeted specific wallet addresses or named exchanges. The new framework covers the entire sector -- foreign or domestic, anyone involved can be designated. The Treasury said Iran is using crypto to circumvent sanctions, with the Islamic Revolutionary Guard Corps directly implicated in some transactions. The expanded authority also covers gold, aviation, shipping, and technology.

One name stands out in the latest batch: Ivan Obukhov, a UAE-based Ukrainian broker. According to the Treasury, he has been processing crypto payments tied to Iranian oil sales since 2023, totaling more than $100 million. His company, Foscom FZE, was sanctioned alongside him. The Treasury described Obukhov as actively helping Iran monetize oil that international sanctions were supposed to block.

Also named were Shelbit and Aban Tether, two exchanges accused of facilitating roughly $5 million in digital asset transactions linked to Iran. The dollar amounts are smaller, the designations signal the Treasury is not only targeting large players. Smaller platforms processing Iran-linked flows are on the radar.

The Obukhov and Shelbit actions follow a pattern that has been building for months. In January, OFAC sanctioned two UK-registered exchanges -- Zedcex and Zedxion -- for Iran-related activity. On June 3, the Treasury targeted four Iranian crypto exchanges in a single action, including Nobitex, Iran's largest domestic trading platform.

Treasury Secretary Janet Yellen said nearly $1 billion in cryptocurrency had been seized from Iranian entities. The number underscores the scale of enforcement. Washington is treating this as a material issue, not a fringe one.

The legal authority rests on Executive Order 13902. Under that order, anyone found operating in Iran's digital asset sector can be designated. US-linked property gets blocked. Foreign banks processing significant transactions for sanctioned entities risk losing access to US financial accounts entirely.

That secondary pressure is probably the most consequential part of the framework. Iran-linked crypto flows move through intermediaries, brokers, over-the-counter desks, and foreign platforms that may not realize they are touching sanctioned activity. The new sectoral determination lets OFAC go after that broader ecosystem, not just the obvious nodes.

What is unclear is how much enforcement disrupts Iran's oil revenues in practice. For major banks with US dollar exposure, the threat is serious. For smaller brokers operating from jurisdictions with limited US ties, the calculation may differ.

Foscom FZE is blocked. Obukhov is designated. Nobitex was hit in June. The Treasury said the new authority expands its capacity to go after foreign individuals and companies supporting Iran's digital asset operations. How many will sever ties remains an open question.