
The U.S. Department of Justice has announced the seizure of more than $225 million in cryptocurrency tied to a vast international fraud and money laundering operation, marking the largest digital asset seizure in the history of the U.S. Secret Service.
Federal investigators traced the funds—stolen from over 400 victims—through an intricate laundering network involving hundreds of thousands of blockchain transactions. The operation was carried out in collaboration with the FBI, the Secret Service, and private-sector partners Tether and TRM Labs.
According to the DOJ, the seized cryptocurrency was distributed across multiple addresses that formed part of a sophisticated blockchain-based laundering network. This system was designed to obscure the source of illicit funds generated through cryptocurrency investment scams.
“The cryptocurrency addresses that held the over $225.3 million were part of a sophisticated blockchain-based money laundering network… used to disperse proceeds of cryptocurrency investment fraud across many cryptocurrency addresses and accounts,” the DOJ said in a statement.
Blockchain forensics revealed that 93 scam deposit addresses funneled the illicit funds through 35 intermediary wallets before consolidating into seven final USDT (Tether) wallet groups. Each wallet held between $3 million and $135 million. Notably, the consolidation process involved excessive transaction fees—reaching up to $125,000—deliberately intended to complicate traceability.
The DOJ’s complaint highlighted one case involving the former CEO of Heartland Tri-State Bank, identified as “S.H.,” who unknowingly transferred $47.1 million of bank funds to scammers. This included a single transaction of 3.1 million USDT to an account on cryptocurrency exchange OKX.
TRM Labs’ analysis identified 144 OKX accounts linked to the scheme. Many were associated with Vietnamese identity documents captured in identical settings, indicating the possible involvement of an organized fraud ring.
To recover the stolen assets, stablecoin issuer Tether froze the affected tokens, destroyed them (“burned” them), and reissued the equivalent value to the U.S. government. This action enabled civil forfeiture under federal law.
The DOJ invoked two statutes to authorize the forfeiture: 18 U.S.C. § 981(a)(1)(A), relating to property involved in money laundering, and 18 U.S.C. § 981(a)(1)(C), covering property derived from wire fraud. While no formal restitution process has yet been announced, authorities indicated that identifying victims and returning funds will be a critical next step.
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