Feds Arrested Ohio Man Charged With Laundering $300 Million Using Bitcoin

Helix operated from 2014 to 2017, authorities said

Cryptocurrency Bitcoin
Cryptocurrency Bitcoin

Federal authorities arrested an Ohio man for operating a cryptocurrency laundering service that moved some $300 million in bitcoin via a “tumbling” operation.

According to an indictment, Larry Dean Harmon of Akron ran an operation called Helix, he exchanged more than 350,000 bitcoin on Helix between 2014 and 2017. Customers could send bitcoin to recipients in a way that was designed to conceal the transaction and the owner of the bitcoin, authorities said.

“The brazenness with which Helix operated should be the most appalling aspect of this operation to every day citizens. There are bad actors and then there are criminals who facilitate hundreds of other crimes,” Don Fort, chief of the IRS Criminal Investigation division said in a statement. “The sole purpose of Harmon’s operation was to conceal criminal transactions from law enforcement on the Darknet, and because of our growing expertise in this area, he could not make good on that promise.”


Also known as mixing, bitcoin tumbling allows owners to blend their cryptocurrency transactions to obscure them from oversight, often to hide illegal activity such as selling drugs.

Harmon is charged with money laundering conspiracy, operating an unlicensed money transmitting business, and conducting money transmission without a DC license.

Once a popular medium for laundering drug money, cryptocurrency exchanges now require disclosures that make operations like Helix less common. In 2018, more than 40 alleged dark-web drug dealers were arrested as part of a federal sting effort targeting darknet vendors. By offering cash for bitcoin, Homeland Security agents traced more than $20 million in drug-linked cryptocurrency transactions to individual dealers.


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