The U.S. government has taken full legal ownership of more than $400 million in seized cryptocurrency, cash, and real estate tied to Helix, once one of the most widely used bitcoin mixing services on the darknet. A federal judge in Washington, D.C., entered a final order of forfeiture on Jan. 21, transferring the assets to the government following the conviction of Helix operator Larry Dean Harmon. The forfeiture includes thousands of bitcoin, hundreds of thousands of dollars in cash, and an Ohio mansion purchased during the peak...