US DOJ Gains Legal Control of $400 Million Linked to Bitcoin Mixer Helix

The U.S. Department of Justice has seized over 400 million dollars in cryptocurrencies, cash, and real estate connected to the Helix Bitcoin Mixer. The forfeiture, finalized in January 2026, concludes years of legal proceedings against Helix’s operator, Larry Dean Harmon.

Helix, active from 2014 to 2017, was promoted as a service to anonymize Bitcoin transactions but became a major hub for laundering funds tied to drug trafficking, hacking, and other criminal activity. Court records show the platform processed more than 354,468 Bitcoin, worth roughly 300 million dollars at the time. Harmon also created the darknet search engine Grams, linking Helix directly to major darknet markets and earning fees from each transaction.

Harmon was charged in 2020 with money laundering conspiracy and operating an unlicensed money transmitting business. He pleaded guilty in 2021 and was sentenced in 2024 to three years in prison, followed by supervised release and asset forfeiture. On January 21, 2026, a federal judge issued a final order officially transferring the assets to the government.

The Helix case is part of a wider crackdown on cryptocurrency mixers and privacy tools, including platforms like Tornado Cash. While advocates argue these tools provide legitimate privacy, authorities continue to target their use in criminal activity. Recently, the DOJ announced it will no longer pursue criminal cases against crypto exchanges, developers, or users for regulatory violations, following the disbanding of the National Cryptocurrency Enforcement Team.