Last week, the U.S. made a significant move against cryptocurrency-enabled crime, obtaining legal title to a hoard of assets worth over $400 million, linked to the infamous Helix cryptocurrency mixing service, as reported by the U.S. Attorney's Office, District of Columbia. The assets, previously owned by Larry Dean Harmon, the mastermind behind Helix, included cryptocurrencies, real estate, and various monetary assets.
U.S. Attorney Jeanine Ferris Pirro made it clear that the darknet is no refuge for criminal enterprise, stating, "This case demonstrates that those who think the darknet provides a safe harbor for crime are dead wrong,” as stated by the U.S. Attorney's Office, District of Columbia. The service reportedly processed over $300 million in illicit cryptocurrency from 2014 to 2017. Harmon pleaded guilty in August 2021 to money laundering charges and was sentenced in November 2024. However, it wasn't until January 21, after finalizing a settlement with a mortgage-holder related to one of Harmon’s properties, that final forfeiture was declared.
Court documents reveal that Helix was connected to and even integrated within several darknet marketplaces, processing approximately 354,468 bitcoin, which equated to roughly $311 million at the time, and was sought after by drug dealers to launder their proceeds. Harmon benefited from a portion of these transactions as fees for his services. The case drew involvement from numerous law enforcement and government agencies, including IRS Criminal Investigation's Cyber Crimes Unit, the FBI's Cyber Division, and support from the Belize government coordinated through the U.S. Embassy in Belmopan, as detailed by the U.S. Attorney's Office, District of Columbia.
The investigation was led by the IRS-CI Cyber Crimes Unit and FBI Washington Field Office, seeing valuable assistance from Justice Department’s Office of International Affairs and the U.S. Attorney’s Office for the Northern District of Ohio, "Joining in the announcement were Assistant Attorney General A. Tysen Duva of the Justice Department’s Criminal Division, Chief of the IRS Criminal Investigation (IRS-CI) Guy Ficco, and FBI Assistant Director Brett Leatherman of the FBI’s Cyber Division," as mentioned in the initial press release. Assistant U.S. Attorney Rick Blaylock, Jr. and Trial Attorneys C. Alden Pelker and Christopher B. Brown were credited with handling the case, which has been a demonstration of the government's commitment to prosecuting cybercriminals.
