COURT SLAPS SEC: FIFTH CIRCUIT GIVES TORNADO CASH NEW LIFE
The Fifth Circuit just handed the Treasury Department and the SEC a rare loss on crypto sanctions. By restoring Tornado Cash’s access to U.S. financial rails, the court signaled that regulators can’t simply label code “a sanctioned entity” and expect courts to rubber-stamp the move. The ruling lands at the exact moment stablecoin issuers and DeFi protocols are watching every enforcement precedent for clues on how far Washington’s reach extends.
The case began when Tornado Cash, a decentralized mixer built on Ethereum, was placed on OFAC’s sanctions list after Treasury accused it of laundering more than $7 billion tied to North Korean hackers and ransomware crews. The mixer’s smart contracts were coded to be unstoppable once deployed, yet Treasury treated the contracts themselves as “property” belonging to a sanctioned foreign adversary. Tornado Cash’s developers and users sued, arguing that immutable code is not a person, not an entity, and therefore cannot be sanctioned under existing statutes. The district court sided with Treasury, but the Fifth Circuit reversed.
Judges held that OFAC exceeded its statutory authority by sanctioning open-source software rather than the people who might use it. The panel found no evidence that the immutable contracts themselves were “owned” by any sanctioned party, and therefore the agency lacked the power to block Americans from interacting with them. The decision does not bless money laundering; it simply says regulators must target actual humans or companies, not autonomous lines of code. Treasury can still prosecute individual users or developers who break the law, but the contracts themselves stay live.
In plain English, the ruling draws a hard line between software and the people who run it. If code cannot be owned, it cannot be sanctioned, and agencies cannot shortcut due process by pretending otherwise. The logic echoes earlier fights over whether social-media algorithms or bitcoin nodes can be treated as “persons” under the law. For now, the Fifth Circuit says no.
The market read the opinion as a shot across the SEC’s bow. While the case involved Treasury sanctions rather than securities law, the precedent weakens the notion that any government body can simply declare a protocol off-limits without naming a flesh-and-blood defendant. That matters for stablecoin issuers who route transactions through Tornado Cash-like privacy tools, for exchanges weighing whether to delist privacy coins, and for DeFi founders who fear their immutable contracts could be next. CFTC oversight of decentralized exchanges could also face new friction if judges keep insisting on identifiable counterparties before enforcement can bite. Traders, meanwhile, will test the edges—expect a short-term bump in on-chain mixing volume and privacy-token prices until the next regulatory salvo lands.
Bottom line: the Fifth Circuit just reminded Washington that code is not a citizen, and until Congress rewrites the statutes, regulators will have to aim at people, not protocols.
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