A major crypto fraud case has moved forward after Hashflare operators Sergei Potapenko and Ivan Turõgin, both Estonian nationals, pleaded guilty in connection with a $577 million cryptocurrency Ponzi scheme. Prosecutors said the fraud ran from 2015 to 2019 and targeted hundreds of thousands of people worldwide, including investors in the United States, through the sale of cloud mining contracts.
Mining contracts sold without real capacity
According to the case, the operators marketed mining services and promised returns even though Hashflare did not have enough computing power to generate the output required under those contracts. Instead of delivering legitimate mining income, they allegedly fabricated profit data and presented false returns to customers.
Authorities said the proceeds were not used as represented for mining operations. Rather, part of the money was diverted to purchase luxury assets, reinforcing the government’s position that the business was built on deception rather than real crypto infrastructure.
More than $400 million to be forfeited
As part of the guilty plea, the two men agreed to forfeit more than $400 million. Officials said the forfeited funds will be directed toward compensating victims. People who lost money in the scheme may pursue recovery through an official remission process.
Both defendants pleaded guilty to conspiracy to commit wire fraud and each faces a maximum sentence of 20 years in prison. Sentencing is scheduled for May 8.
Cross-border enforcement effort
The investigation was led by the FBI’s Seattle Field Office with support from Estonian authorities and the U.S. Department of Justice. The case underscores continued regulatory and enforcement scrutiny of crypto businesses that promise returns without transparent, verifiable operational backing.