The resolution of the legal challenge initiated by Coin Center against the U.S. Treasury Department regarding its sanctions on Tornado Cash marks a significant development in the ongoing discourse surrounding regulatory authority within the decentralized finance (DeFi) sector. This high-profile dispute, which questioned the government’s power to sanction open-source protocols, has formally concluded following a joint motion to dismiss granted by the U.S. Court of Appeals for the Eleventh Circuit. The outcome is widely interpreted as setting a crucial precedent for digital rights and the future of permissionless software development within the United States.
- Coin Center initiated a legal challenge against the U.S. Treasury Department’s sanctions on Tornado Cash.
- The Treasury’s Office of Foreign Assets Control (OFAC) sanctioned the cryptocurrency mixing service Tornado Cash in August 2022.
- The Treasury Department discreetly reversed its sanctions against Tornado Cash in March, following legal pressure.
- The dispute formally concluded with a joint motion to dismiss granted by the U.S. Court of Appeals for the Eleventh Circuit.
- The outcome is widely viewed as a significant victory for open-source software development and digital rights.
Background of the Dispute
The contention began in August 2022 when the Treasury Department’s Office of Foreign Assets Control (OFAC) imposed sanctions on Tornado Cash, a cryptocurrency mixing service designed to enhance transaction privacy by obscuring the origin and destination of digital assets. These sanctions effectively prohibited U.S. citizens and businesses from interacting with the protocol, drawing swift criticism from Coin Center, a prominent non-profit advocacy group focused on cryptocurrency policy. The organization promptly initiated legal action, asserting that OFAC’s measure exceeded its regulatory purview and raised fundamental questions about the government’s ability to restrict access to neutral, open-source software, regardless of how it might be misused by malicious actors.
A Pivotal Shift in Stance
A key turning point in the litigation was the Treasury Department’s decision to discreetly reverse its sanctions against Tornado Cash in March. This shift in stance followed mounting legal pressure and an earlier federal appellate court decision that suggested OFAC had potentially acted beyond its statutory limitations in implementing the ban. Peter Van Valkenburgh, Executive Director of Coin Center, commented on the dismissal via X, stating, This is the official end of our court fight over the statutory authority behind the TC sanctions.
He further noted, The government was not interested in continuing to defend its dangerously broad interpretation of the sanctions laws.
Broader Implications and Precedent
The case evolved into a focal point in the broader national debate concerning the U.S. government’s approach to decentralized technologies and financial privacy. Critics had vociferously warned that sanctioning open-source protocols could establish a perilous precedent, effectively criminalizing software code itself, irrespective of its intended or primary use. This concern underscored the inherent tension between national security interests and the foundational principles of technological neutrality and individual liberty in digital environments, particularly as blockchain technologies continue to integrate into mainstream financial systems.
Looking Ahead: A Victory for Digital Rights
With the dismissal now formalized, proponents of the cryptocurrency ecosystem view the outcome as a substantial victory. It reinforces the legal protection for developers engaged in creating open-source software and underscores the importance of a nuanced regulatory approach that clearly distinguishes between malicious actors and the neutral tools they might misuse. The resolution is expected to influence future regulatory considerations for a wide array of blockchain-based technologies and privacy-enhancing protocols, potentially encouraging innovation by providing clearer legal boundaries for software development in the U.S.

Senior Crypto Correspondent with over 8 years of experience covering Bitcoin, altcoins, and blockchain technology for leading financial publications. Alexander holds a master’s degree in Financial Economics and specializes in in-depth market analysis, regulatory updates, and interviews with top industry figures.