Six people, including Coinbase employees and prominent crypto developers, sue the US Treasury, Janet Yellen, and officials in Texas over Tornado Cash sanctions
Six users of Tornado Cash, a popular decentralized cryptocurrency service, filed a lawsuit on Thursday against the U.S. Treasury Department …
Context & Ripple Effects
A month after the Treasury sanctioned Tornado Cash and 44 associated wallets in August 2022 — citing use by North Korean hackers — six users of the mixer are taking the fight to court rather than waiting for policy relief. The plaintiffs include Coinbase employees and prominent crypto developers, giving the suit both standing as affected users and technical credibility about how the protocol works.
The filing opens what became a multi-year legal campaign: Coin Center filed its own challenge two months later (arguing Treasury overstepped its authority), an early Coinbase-funded bid lost in 2023, but the arc eventually bent the other way — a Texas District Court ruled against the sanctions in January 2025 and the watchdog delisted Tornado Cash that March.
First-order effects
- Treasury, Janet Yellen, and Texas officials now face named plaintiffs with direct standing — users whose own funds were caught by the wallet-level sanctions — rather than abstract industry objections.
- Coinbase employees suing their employer's regulator puts the exchange's compliance posture under scrutiny at the same time it is absorbing wider-than-expected quarterly losses.
Second-order effects
- Coin Center's parallel lawsuit weeks later turns a single complaint into a coordinated legal front, raising the cost for Treasury of defending the sanctioning approach across multiple courts.
- Other crypto firms gain a template: fund user-led litigation instead of lobbying alone, a path Coinbase followed with its backing of the later investor-developer suit.
Third-order effects
- If the pattern holds through to the eventual court rulings and delisting, it establishes that sanctions aimed at immutable smart contracts are legally vulnerable — forcing future Treasury actions against protocols to target persons and entities rather than code addresses.
- The episode hardens the industry's view that it can win legitimacy through courts, feeding a broader fight over whether DeFi tools get treated as infrastructure or as sanctioned actors.
The trend: Crypto's first-of-its-kind protocol sanctions triggered a years-long litigation counteroffensive that ended with the sanctions unwound — setting the precedent that code-level blacklisting faces legal limits.