
Two Estonian citizens who ran HashFlare were arrested for defrauding investors of a total of $575 million (roughly Rs. 4,668 crore). HashFlare, the cloud mining service that was founded in 2015 had shut down its Bitcoin mining hardware and cancelled related contracts after claiming to allow customers to lease company hashing power to mine cryptocurrencies and gain an equivalent share of their profits. The company was seen as one of the leading brands in the business at the time but closed its mining operations in July 2018.
According to court documents, Sergei Potapenko and Ivan Turõgin, both 37, allegedly defrauded hundreds of thousands of victims through a multi-faceted scheme. They induced victims to enter into fraudulent equipment rental contracts with the defendants’ cryptocurrency mining service called HashFlare. They also caused victims to invest in a virtual currency bank called Polybius Bank. In reality, Polybius was never actually a bank, and never paid out the promised dividends. Victims paid more than $575 million to Potapenko and Turõgin’s companies. Potapenko and Turõgin then used shell companies to launder the fraud proceeds and to purchase real estate and luxury cars.
“New technology has made it easier for bad actors to take advantage of innocent victims – both in the U.S. and abroad – in increasingly complex scams,” said Assistant Attorney General Kenneth A. Polite, Jr. of the Justice Department’s Criminal Division. “The department is committed to preventing the public from losing more of their hard-earned money to these scams and will not allow these defendants, or others like them, to keep the fruits of their crimes.”
“The size and scope of the alleged scheme is truly astounding. These defendants capitalized on both the allure of cryptocurrency, and the mystery surrounding cryptocurrency mining, to commit an enormous Ponzi scheme,” said U.S. Attorney Nick Brown for the Western District of Washington. “They lured investors with false representations and then paid early investors off with money from those who invested later. They tried to hide their ill-gotten gain in Estonian properties, luxury cars, and bank accounts and virtual currency wallets around the world. U.S. and Estonian authorities are working to seize and restrain these assets and take the profit out of these crimes.”

“The FBI is committed to pursuing subjects across international boundaries who are utilizing increasingly complex schemes to defraud investors,” said Assistant Director Luis Quesada of the FBI’s Criminal Investigative Division. “Victims in the U.S. and abroad invested into what they believed were sophisticated virtual asset ventures, but it was all part of a fraudulent scheme and thousands of victims were harmed as a result. The FBI thanks our national and international partners for their efforts throughout the investigation to help bring justice for the victims.”
According to the indictment, Potapenko and Turõgin claimed that HashFlare was a massive cryptocurrency mining operation. Cryptocurrency mining is the process of using computers to generate cryptocurrency, such as Bitcoin, for profit. Potapenk and Turõgin offered contracts which, for a fee, purported to allow customers to rent a percentage of HashFlare’s mining operations in exchange for the virtual currency produced by their portion of the operation. HashFlare’s website enabled customers to see the amount of virtual currency their mining activity had supposedly generated. Customers from around the world, including western Washington, entered into more than $550 million worth of HashFlare contracts between 2015 and 2019.