Tether Froze $42 Million on an Informal Request. The Warrant Came Four Months Later.
The most powerful law-enforcement tool in crypto is not a subpoena. It is a function call in a smart contract, and the company that controls it does not need a judge to run it.
On August 31, two Thai businessmen sued Tether in the Southern District of New York over a USDT freeze of 42.4 million tokens across ten Ethereum addresses. The freeze happened on October 30, 2025. According to the complaint, no warrant or other legal process existed until February 19, 2026. In between, the plaintiffs say, Tether acted on an informal request from a single US law-enforcement agent.
If that timeline holds up in court, a private company in El Salvador confiscated $42 million of someone else's money on the strength of an email.
The freeze button was always the product
Nobody should be surprised that Tether can do this. It has done it thousands of times and says so proudly. The company has frozen more than $2.8 billion in USDT across 4,500 wallets by its own count, including a single $344 million action coordinated with OFAC. In one 30-day stretch this spring it blacklisted 370 addresses holding about $515 million.
Tether frames every one of these as a win against scammers, and most of them probably are. The funds in this case appear linked to a Justice Department case in which prosecutors say more than $61 million in USDT was stolen through pig-butchering schemes and laundered through a chain of wallets. The DOJ thanked Tether for its help. Tether called it a recovery.
Here is the difficulty. The plaintiffs say they bought the USDT in secondary-market business deals and have no relationship with Tether at all. That is how bearer instruments work. A dollar bill does not carry the history of the drug deal three hands back, and neither, by design, does a token. Tether's blacklist attaches that history anyway, and it attaches it to whoever is holding the bag when the agent calls.
What the lawsuit actually asks
Strip out the legal vocabulary and the complaint asks two questions.
First: can Tether freeze tokens in a private wallet before any court has said a word? The plaintiffs argue it cannot, and they have filed claims for conversion, trespass to chattels and unjust enrichment. The unjust-enrichment piece is the sharp one. Tether earns yield on the Treasuries backing every USDT, including frozen ones. For ten months the plaintiffs say Tether has been collecting interest on money it will not let them touch. They want it back.
Second: once a warrant arrives, does it let Tether burn the frozen tokens and mint fresh ones into a government wallet before a court rules the funds are forfeitable? Tether has done exactly this in earlier cases. The plaintiffs want an injunction stopping it here.
Neither question has a clean answer, because the answer lives in Tether's terms of service, which the plaintiffs never signed, and in a US warrant that a Thai holder never saw. A court will now have to decide whether "we cooperate with law enforcement" is a legal basis or just a slogan.
Concede Tether's side. If it had refused the October request and waited for paper, the tokens could have moved in minutes and the victims of the underlying scam would have recovered nothing. Speed is the entire point of a freeze. Every compliance officer in the industry would have made the same call, and most of them would have been right.
But "usually right" is not a standard. It is a batting average. The people who get hit by the misses have no appeal, no hearing and, until last week, no case.
The GENIUS Act made this the law, not the exception
The uncomfortable part for anyone hoping regulation would rein this in: it did the opposite. The US stablecoin law that passed last year requires permitted issuers to have the technical ability to freeze, seize and burn tokens on lawful order. Singapore's proposal this week and MiCA's rules run in the same direction. The freeze button is not a bug regulators tolerate. It is a feature they require.
What none of those laws spell out is what "lawful order" means when the request is a phone call and the paperwork is four months late. That is the gap this case sits in. Tether will argue that its terms let it act on any credible law-enforcement request. The plaintiffs will argue that a credible request is not a court, and that a company with more than $100 billion in reserves cannot outsource due process to whichever agent has its email address.
The twenty-one banks that announced a dollar stablecoin on Tuesday should read this complaint carefully. Their token will carry the same button. When a bank freezes an account, decades of case law say what happens next. When a stablecoin issuer freezes a wallet, nobody has yet said anything. The first court to speak will write the rulebook for every issuer that follows.
Why holders should care before they get frozen
Most USDT holders will never hear from Tether. The ones who do tend to be several transactions removed from any wrongdoing, which is exactly the population the blacklist was never designed to protect. The complaint describes secondary-market purchases, the kind of over-the-counter dollar trades that move enormous volume through Southeast Asia every day. The seller's counterparty's counterparty was a scammer. The buyer found out when the balance stopped moving.
There is a practical lesson here, and it isn't "don't use USDT." It is that a stablecoin balance is not a fact about your wallet. It is a claim against an issuer's willingness to honor it. A portfolio tracker like The Crypto App will show $42.4 million sitting in those ten addresses today, because the tokens are still there. They just cannot go anywhere. The gap between what a screen shows and what a holder can spend is the whole dispute.
Treasury desks that hold project runway in stablecoins have already started to notice. Locked tokens held for a team or investors through a service like Team Finance sit in a contract that releases on schedule; a blacklisted address does not care about the schedule. Counterparty risk in a stablecoin is not the peg. It is the list.
The case could end quietly, and that would be worse
Tether could settle. It could unfreeze the ten addresses tomorrow, keep the DOJ happy with a different tranche, and the question of pre-warrant freezes would go back to being a compliance-desk folk custom rather than a matter of record. That would be the rational move for a company that has spent years and a great deal of money becoming the US government's favorite offshore partner.
It would also leave every holder of a dollar token exactly where they are now: one informal request away from a frozen balance, with no rule about who can make the request or how long the paper can take.
The stablecoin industry told Congress it wanted to be regulated like money. Money, it turns out, comes with due process. Somebody has to decide whether tokens do, and a court in Manhattan is now the first one asked. The answer will matter far more to the next $1 trillion of stablecoins than to the $42 million sitting still on Ethereum today.