Tornado Cash plaintiffs seek appeals after federal court losses

Plaintiffs in two cases are bringing their battle against the US Treasury Department to federal appellate courts

article-image

solarseven/Shutterstock modified by Blockworks

share

Despite recent losses in court, interested parties and crypto industry players are not giving up their fight against Tornado Cash sanctions. 

Plaintiffs in two cases are bringing their battle against the US Treasury Department to federal appellate courts. Joseph Van Loon, along with five other self-identified “Ethereum blockchain users” sued the US Treasury Department, Secretary Janet Yellen, the Office of Foreign Asset Control (OFAC) and OFAC Director Andrea Gacki in September 2022.

They argued that the US government was out of line when it sanctioned crypto mixing service Tornado Cash. Tornado Cash was sanctioned in August 2022 under accusations the service facilitated the laundering of billions of dollars.

Read more: Tornado Cash sanctions expose potential DeFi Achilles’ heel

The mixing service has no place on the Specially Designated Nationals and Blocked Persons (SDN) list, the plaintiffs argue. The Treasury’s “unprecedented, overbroad action exceeds Defendants’ statutory authority, infringes on Plaintiffs’ constitutional rights, and threatens the ability of law-abiding Americans to engage freely and privately in financial transactions,” plaintiffs wrote in their September complaint. 

A federal judge in Texas sided with the federal government in August, rejecting the argument that OFAC was acting outside its jurisdiction. 

“Plaintiffs urge the Court to reject broad definition, claiming that OFAC is not entitled to deference when defining unambiguous statutory terms,” Judge Robert Pitman wrote in his opinion. “But ‘interest in property’ is hardly an unambiguous term.”

Loon and his fellow plaintiffs, with the support of crypto exchange Coinbase, filed an appeal in Fifth Circuit on Tuesday, stating that the Pitman’s original ruling does not address the fact that Tornado Cash, which they describe as a piece of computer code, is not a “foreign national or person,” therefore putting it outside OFAC’s authority. 

“Whether the Department’s inclusion of immutable smart contracts on the SDN List is contrary to law and in excess of statutory authority because the purported Tornado Cash entity does not have an ‘interest’ in the immutable smart contracts under [the International Emergency Economic Powers Act] and the North Korea Act,” Loon’s appeal states. 

Coin Center, Bankless co-founder David Hoffman and others filed a lawsuit against the same federal parties in October 2022. 

Read more: Tornado Cash got wrecked, and we could have prevented it

Like in Loon’s case, a federal judge in Florida sided with the US government last month, prompting Coin Center and its co-plaintiffs to file an appeal in the Eleventh Circuit last week.

Coin Center cited similar concerns over the use of the International Emergency Economic Powers Act and the government’s treatment of Tornado Cash’s as a foreign person or national. 

“Congress gave [the] Treasury the power to prohibit transactions involving certain “property” in which a foreign “national” or sanctioned ‘person’ has an interest,” Paul Grewal, chief legal officer at Coinbase, wrote on X Tuesday. Treasury’s action here stretches that authority and those words beyond any recognition.


Get the news in your inbox. Explore Blockworks newsletters:

  • Blockworks Daily: The newsletter that helps thousands of investors understand crypto and the markets, by Byron Gilliam.
  • Empire: Start your morning with the top news and analysis to inform your day in crypto.
  • Forward Guidance: Reporting and analysis on the growing intersection of crypto and macroeconomics, policy and finance.
  • 0xResearch: Alpha directly in your inbox. Market highlights, data, degen trade ideas, governance updates, token performance and more.
  • Lightspeed: Built for Solana investors, developers and community members. The latest from one of crypto’s hottest networks.
  • The Drop: For crypto collectors and traders, covering apps, games, memes and more.
Tags

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 18 - 20, 2025

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

Industry City | Brooklyn, NY

TUES - THURS, JUNE 24 - 26, 2025

Permissionless IV serves as the definitive gathering for crypto’s technical founders, developers, and builders to come together and create the future.If you’re ready to shape the future of crypto, Permissionless IV is where it happens.

Old Billingsgate

Mon - Wed, October 13 - 15, 2025

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Unlocked by Template (4).png

Research

Wormhole Settlement allows for a highly scalable liquidity venue to fill user intents into a multichain, multi-VM future. By concentrating solvers’ balance sheets on Solana, transaction costs associated with solvers rebalancing inventory across destinations are eliminated. With the ability to settle bridging, swapping, and arbitrary interactions, without the costs and frictions of fragmenting solver liquidity, Wormhole Settlement has the opportunity to settle a large share of volumes in the crosschain interoperability market with a beneficial framework for both users and solvers. 

article-image

On Supply Shock, Asymmetric founder Dan Held discussed why Bitcoin DeFi will take market share from Solana, Ethereum and other top blockchains

article-image

Pillsbury partner Brian Montgomery said that banks are mulling how to gain exposure to crypto

article-image

The company has now acquired three Solana validator operators since its September pivot into Solana

article-image

Those hoping for an executive order, a bill draft, or a major announcement from the CFTC or SEC were disappointed

article-image

Uncertainty around the US economy’s outlook is spurring a risk-off wave

article-image

The team says they’re still building despite the massive weekend selloff