The United States Department of Justice has finalized the forfeiture of over $400 million in assets that were seized from Larry Dean Harmon, who operated the darknet crypto mixing service known as Helix.
Summary
- DOJ secures legal ownership of over $400 million in assets seized from Helix operator Larry Dean Harmon.
- Helix processed more than 354,000 Bitcoin between 2014 and 2017 to launder funds from darknet markets.
Following a final court order issued by Judge Beryl A. Howell of the District Court for the District of Columbia, the government has obtained the legal title to the forfeited assets, the DOJ said in a Jan. 29 statement.
Helix is a cryptocurrency mixer that, during the time it was active, helped various criminal actors, including online drug dealers, to launder digital funds and obscure transaction trails.
For those unaware, cryptocurrency mixers are tools that allow users to exploit the pseudonymous nature of cryptocurrencies by pooling funds from multiple sources and redistributing them in a way that hides the origin and destination of the money.
According to the DOJ, between 2014 and 2017, over $300 million worth of cryptocurrency was funnelled through the service as part of a broader effort to conceal illicit proceeds from darknet markets.
The assets in question were first seized from Larry Dean Harmon, who built the platform and the Grams search engine to integrate directly with darknet marketplaces like AlphaBay, enabling seamless laundering of digital currencies at scale.
“Harmon retained a percentage of these transactions as his commissions and fees for operating Helix,” the DOJ said.
Harmon pleaded guilty to operating an unlicensed money-transmitting business and violating the Bank Secrecy Act in 2021, following his arrest the previous year, and was subsequently sentenced to three years in prison in 2024.
Just two years before his sentencing, Harmon’s brother, Gary James Harmon, was indicted in 2022 for using stolen credentials to steal seized crypto assets that were stored in an IRS evidence locker at the time.
Crypto mixers like Helix have drawn increasing criticism from U.S. regulators and global enforcement agencies, who argue that the core functionality of such tools often revolves around enabling money laundering operations at scale.
While a mixer in itself doesn’t constitute anything illegal, developers behind many of these services have faced criminal prosecution and jail time in the U.S.
Privacy enthusiasts, like Ethereum co-founder Vitalik Buterin, argue that building decentralized privacy tools is not in itself a criminal act and that developers should not be punished simply because their code is misused.
Last month, President Donald Trump said he was reviewing a potential pardon for Keonne Rodriguez, who co-founded the mixing service Samourai Wallet and was sentenced to five years in prison on charges related to money laundering and unlicensed money transmission.
