Tornado Cash Developer Retrial: Impact on US
Published 6/17/2026, 4:39:54 AM
Current Case Status
Roman Storm, co-founder of Tornado Cash, was convicted on August 6, 2025 in the Southern District of New York of one count of conspiracy to operate an unlicensed money transmitting business under 18 U.S.C. § 1960. The jury convicted on this single charge but deadlocked on two more serious counts: conspiracy to commit money laundering and conspiracy to violate sanctions (IEEPA) [Source: https://www.mayerbrown.com/en/insights/publications/2025/08/tornado-cash-developer-roman-storm-found-guilty-on-one-count].
The DOJ filed a request for retrial on the deadlocked charges in March 2026, with proposed retrial dates set for October 5 or 12, 2026 (estimated 3-week duration). Storm faces up to 5 years maximum for the current conviction, but if convicted on both retrial counts, he faces up to 40 additional years (20 years each) [Source: https://www.coindesk.com/legal/tornado-cash-developer-roman-storm-verdict].
Post-trial motions remain pending: Defense filed a motion for acquittal in October 2025, prosecutors filed a 113-page opposition in November 2025, and oral arguments were heard on April 9, 2026.
Key Legal Precedents Shaping Developer Liability
Fifth Circuit Van Loon Decision (November 26, 2024)
In Van Loon v. Department of the Treasury, the Fifth Circuit ruled that OFAC exceeded its statutory authority by sanctioning Tornado Cash's immutable smart contracts. Key holdings:
- Immutable smart contracts are not "property" under IEEPA
- No person or entity—including original developers—had the ability to control their operation after deployment
- OFAC cannot "unplug" immutable smart contracts
- The court reversed the district court and remanded with instructions to grant partial summary judgment [Source: https://casetext.com/case/van-loon-v-department-of-the-treasury]
Treasury's Regulatory Response
OFAC officially removed Tornado Cash from the SDN list on March 21, 2025, marking a significant shift in US regulatory approach to autonomous smart contracts. However, Roman Semenov remains individually listed [Source: https://home.treasury.gov/news/press-releases/press-briefing-march-21-2025].
District Court Ruling (September 2024)
Judge Katherine Polk Failla denied Storm's motion to dismiss, holding that Tornado Cash could qualify as a money transmitter regardless of whether developers had custody of funds [Source: https://www.mayerbrown.com/insights/publications/2025/08/roman-storm-tornado-cash-verdict-analysis].
Prosecution vs. Defense Legal Theories
| Aspect | Prosecution | Defense |
|---|---|---|
| Core Argument | Storm actively operated a financial service by maintaining front-end UI (~250 updates 2020-2022), controlling the domain (96% of users accessed through developer UI), and operating relayer infrastructure | Tornado Cash was a non-custodial, privacy tool where smart contracts were immutable—"burned the keys" |
| Criminal Proceeds | $1+ billion in criminal proceeds processed, including funds from North Korean Lazarus Group | Users retained full control of assets at all times; no custody by developers |
| Developer Profit | Storm personally profited approximately $12 million | FinCEN guidance distinguishes developers who create tools vs. businesses that accept and transmit funds |
| Legal Standard | Active maintenance transformed "published code" into "operated financial service" | Building a neutral platform knowing it could be misused is not criminal (similar to VPNs, encrypted messaging, or hammers) |
Impact on US Privacy Protocol Development
Observable Regulatory Strategy Shift
The case has prompted a shift from sanctioning the code to targeting developers, and from blocking contract addresses to requiring KYC at on/off ramps. The Blockchain Association called the verdict "a dangerous precedent that misapplies money transmitter laws" [Source: https://www.coindesk.com/people/roman-storm-verdict-analysis].
Industry Response and Support
- Ethereum Foundation: Pledged to match up to $750,000 in legal defense contributions, driving Storm's total defense fund above $5 million
- Vitalik Buterin: Published open letter in January 2026 calling for leniency and urging the case not be used to criminalize open-source development
DOJ's Evolving Position
In an April 2025 memo, Deputy Attorney General Todd Blanche stated the DOJ "is not a digital assets regulator." However, the same DOJ is now seeking retrial on the two most serious charges—creating apparent policy contradiction.
Emerging "Compliant Privacy" Framework
Future protocols may need to incorporate:
- Optional disclosure functionality
- Proof of innocence mechanisms
- Sanctions screening at entry/exit points
- View keys for audit
Practical Guidance for Developers
- Document intent and design decisions contemporaneously
- Engage crypto-specialized counsel before launching privacy-adjacent projects
- Consider deployment from non-US entities
- Add optional compliance features even when not required
- Understand that DAO structure may not protect individuals from criminal liability
Conclusion
The October 2026 retrial will likely determine whether developers of decentralized protocols can be held criminally liable for third-party misuse, and the precise line between publishing software and operating a financial service. The Fifth Circuit's Van Loon ruling provides favorable precedent for immutable contracts, but the district court's denial of Storm's motion to dismiss suggests active maintenance and UI control may still constitute money transmission. The outcome will materially influence whether US-based developers continue, relocate, or curtail work on privacy-preserving protocols.
Suggested Follow-Up Actions
- Monitor retrial proceedings — Schedule a recurring check-in for October 2026 to review the retrial outcome and any precedent-setting rulings.
- Evaluate compliant privacy alternatives — Research protocols that have already incorporated optional KYC or view-key audit functionality as models for future development.