U.S. Treasury Investigates Crypto Exchanges for Sanctions Evasion

U.S. Treasury Targets Over $500M in Crypto Flows

The U.S. Treasury is probing major U.S.-facing crypto exchanges over potential Iran sanctions evasion via cryptocurrency, as reported by TRM Labs on December 15, 2025.

This investigation highlights the increasing scrutiny on cryptocurrency to evade sanctions, signaling potential regulatory changes and impacting stablecoin and Bitcoin market flows significantly.

The U.S. Treasury Department is probing major crypto exchanges for potential involvement in Iran sanctions evasion, as reported by blockchain intelligence firm TRM Labs. This investigation highlights a significant focus on crypto exchanges handling suspect flows.

Reports indicate that over $500M in suspicious transaction flows have been identified since 2023. Esteban Castaรฑo emphasizes the need for real-time analytics to manage these evolving compliance challenges.

Possible Regulatory Shakeup for U.S. Financial Markets

Financial markets, particularly those dealing in stablecoins, are closely monitoring these developments. TRM reports that the U.S. banks have been flagged but no funding or service disruptions have been confirmed.

The potential regulatory outcomes of the probe could have significant ramifications. Past similar events have led to increased scrutiny and regulatory compliance, with exchanges enhancing Know Your Customer (KYC) processes to mitigate sanction risks.

Treasuryโ€™s focus on exchanges handling Iran-linked wallets underscores need for real-time analytics. TRM flagged 2,300+ addresses evading OFAC lists. โ€“ Esteban Castaรฑo, Co-founder & CEO, TRM Labs

Lessons from 2022 Tornado Cash Sanctions

This investigation draws parallels to the 2022 Tornado Cash sanctions, where the Treasury took action against crypto mixers for enabling evasion of sanctions by entities such as Iran and North Korea. Patterns in illicit finance are increasingly underscored.

Experts point to the necessary strengthening of compliance tools by exchanges. Raoul Pal noted on X that TRMโ€™s insights highlight the porous nature of current sanctions, urging for comprehensive regulatory oversight in stablecoin transactions.

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