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Jury convicts Uranium Finance hacker with $31 million of the $53.3 million take already seized

Manhattan federal jurors convicted Jonathan Spalletta of computer fraud and money laundering over the $53.3 million Uranium Finance exploit of 2021. Where the roughly $31 million in crypto seized in February 2025 ends up now turns on restitution and forfeiture rulings still to come.

The Investor · Invest desk

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Illustration accompanying Jury convicts Uranium Finance hacker with $31 million of the $53.3 million take already seized
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What happened

  • A faulty math check in Uranium's version 2.1 contracts let the attacker empty 26 liquidity pools on April 28, 2021, leaving the BNB Chain exchange without funds.
  • Prosecutors said about $26 million passed through the Tornado Cash mixer between April 2021 and November 2023, with some later spent on collectibles.
  • No sentencing date is set, and the two counts carry statutory maximums of 10 years for computer fraud and 20 years for money laundering.

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Why it matters

  • exposure Anyone who lost money in the 26 pools still depends on restitution and forfeiture rulings, and about $22.3 million of the original dollar figure lies outside what agents seized.
  • precedent Keeping a self-set cut of about 29% and returning the rest did not protect this exploiter, so the next one cannot count on a private bounty as cover once prosecutors call it a sham.
  • constraint A mixer gives exploiters less cover than the defense claimed: 31 months of Tornado Cash routing still ended in a guilty verdict built on tracing and the defendant's own messages.

Set the roughly $31 million in crypto seized in February 2025 [7] against the roughly $53.3 million drained on April 28, 2021 [2], and the seizure covers about 58% of the take [17]. Or rather, it is 58% of a 2021 dollar figure measured against a 2025 one, taken 46 months apart [18]. Crypto held that long does not keep the dollar value it had on the day it was taken. About $22.3 million of the original figure sits outside the seizure [20]. What anyone who lost money in the 26 pools gets back depends on restitution and forfeiture questions that were still open at press time [24].

Prosecutors said about $26 million, roughly 49% of the take [19], moved through Tornado Cash between April 2021 and November 2023 [4]. Blockchain investigator ZachXBT traced millions leaving the mixer in 100 ETH chunks that were converted and spent on collectibles [15]. The indictment lists six lots. Among them are a Black Lotus Magic: The Gathering card at about $500,000 and 18 sealed Alpha booster packs at about $1.51 million [5], plus a Roman Eid Mar coin at about $601,545 and Wright brothers airplane fabric at about $137,500 [6]. All six add up to about $3.76 million [13], about 7% of the drain [14]. Cards and coins can be physically seized, and agents took the Black Lotus and the fabric along with the crypto [7].

The first attack has the odder term. On April 8, 2021, prosecutors said, Spalletta took about $1.4 million through a rewards-distribution flaw and handed back roughly $1 million under what authorities described as a sham bug bounty [3]. The roughly $400,000 not returned [22] works out to a bounty of about 29% [23], priced by the person who took the money. "I did a crypto heist of $1.5MM a couple of weeks ago... There was a bug in a smart contract, and I exploited it... Crypto is all fake internet money anyway," he wrote in a message quoted in the indictment [9]. After that first incident he told a Uranium representative, "Get your code audited next time." [10]

His lawyers argued at trial that prosecutors could not prove "whose fingers were on the keyboard," that he had not written Uranium's faulty code, and that Tornado Cash was a privacy tool [11]. The government answered with blockchain tracing and his own messages, and the jury convicted on both counts [12].

Sentencing has no date. The statutory maximums of 10 years for computer fraud and 20 years for money laundering are ceilings [8]. After the verdict, Judge Jed S. Rakoff turned down prosecutors' request for GPS monitoring, citing Spalletta's attendance in court [16]. Uranium itself was left without funds by the second attack [2], so the February 2025 seizure is the only recovered value on the record [7].

I think the verdict shows more about tracing than about recovery. A mixer used for 31 months [21] did not stop a jury from tying the money to one defendant [12]. The opposing reading has weight: about 58% of the dollar take already sits in federal custody, held against a defendant now convicted on both counts [17][1]. The test is the restitution order. If it sends most of the seized $31 million to people who lost money in the 26 pools, the case shows prosecution and partial recovery together. If the assets are forfeited without a matching award to those people, the conviction is the whole result [24].

What to watch

  • The sentencing date Judge Rakoff sets, and the term against statutory maximums of 10 years for computer fraud and 20 for money laundering.
  • Restitution and forfeiture orders that say how much of the $31 million in seized crypto and the seized collectibles goes to people who lost money in the 26 pools.
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