Jonathan Spalletta, 36, of Rockville, Maryland, was convicted of computer fraud and money laundering for two April 2021 attacks on decentralized exchange Uranium Finance that drained more than $50 million. A Manhattan federal jury found him guilty on every count after a six-day trial before U.S. District Judge Jed S. Rakoff and roughly two hours of deliberations. Prosecutors said Spalletta used looping transactions to take about $1.4 million from a rewards pool on April 8, then exploited a withdrawal flaw across 26 liquidity pools on April 28 to take about $53.3 million, leaving Uranium Finance unable to continue operating. He returned most of the first haul while retaining roughly $386,000 as a purported bug bounty that prosecutors called a sham. The conviction comes amid debate over whether conduct technically permitted by smart-contract code can constitute fraud: a judge suspended Mango Markets exploiter Avraham Eisenberg's fraud convictions in May 2025, and prosecutors are appealing that ruling. Authorities seized about $31 million in cryptocurrency tied to the Uranium exploit in February 2025. Prosecutors said Spalletta used proceeds to buy high-value trading cards, a Roman Eid Mar coin and a piece of Wright brothers airplane fabric carried to the Moon by Neil Armstrong.