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Estonian nationals sentenced in Seattle for Ponzi scheme
cryptocurrency

Estonian nationals sentenced in Seattle for Ponzi scheme

Two Estonian nationals were sentenced in Seattle for a 77M cryptocurrency Ponzi scheme involving fake mining contracts.

August 13, 2025
5 min read
Frank Lenzi

Estonian Nationals Sentenced in Seattle for Cryptocurrency Ponzi Scheme

Two Estonian nationals, Sergei Potapenko and Ivan Turõgin, both 40, have been sentenced to 16 months in prison for their roles in a cryptocurrency Ponzi scheme that defrauded hundreds of thousands of victims worldwide, including in the United States. The sentencing took place in U.S. District Court in Seattle on Tuesday. In addition to the prison time, which they have already served, Potapenko and Turõgin were each ordered to pay a $25,000 fine and complete 360 hours of community service.

The Cryptocurrency Scheme

The fraudulent scheme centered around a purported cryptocurrency mining service called HashFlare. The company sold contracts promising customers a share of profits from cryptocurrency mining operations. According to a news release from the U.S. Attorney’s Office, "Between 2015 and 2019, HashFlare sales totaled more than $577 million, relying on fake online dashboards that falsely reported mining activity and returns. HashFlare lacked the computing capacity to mine the vast majority of cryptocurrency it claimed to generate." Potapenko and Turõgin used investor funds to purchase real estate, luxury vehicles, and to fund investment and cryptocurrency accounts for their personal use. Authorities have seized assets valued at more than $450 million, which will be used to compensate victims of the scheme. Prosecutors had originally argued for a ten-year prison term. The Department of Justice is currently considering whether to appeal the sentence.

Frequently Asked Questions (FAQ)

About the Scheme and Sentencing

Q: Who were the individuals sentenced and for what crime? A: Sergei Potapenko and Ivan Turõgin, two Estonian nationals, were sentenced for their involvement in a cryptocurrency Ponzi scheme. Q: What was the cryptocurrency scheme called? A: The scheme was centered around a purported cryptocurrency mining service called HashFlare. Q: How much money did HashFlare sales generate? A: HashFlare sales totaled more than $577 million between 2015 and 2019. Q: Did HashFlare actually have the capacity to mine the cryptocurrency it claimed to generate? A: No, HashFlare lacked the necessary computing capacity to mine the vast majority of the cryptocurrency it claimed to generate. Q: What was the sentence for Potapenko and Turõgin? A: They were each sentenced to 16 months in prison, a $25,000 fine, and 360 hours of community service. Q: What happened to the assets seized from the scheme? A: Assets valued at over $450 million were seized and will be used to compensate victims. Q: Are the authorities considering an appeal of the sentence? A: Yes, the Department of Justice is currently considering whether to appeal the sentence.

Crypto Market AI's Take

Cryptocurrency scams, particularly Ponzi schemes that leverage the allure of high returns, remain a significant threat in the digital asset space. The HashFlare case highlights the importance of due diligence and skepticism when investing in novel technologies. At AI Crypto Market, we leverage advanced AI and machine learning to provide users with data-driven insights and analysis, helping to identify legitimate opportunities and mitigate risks. Our platform aims to empower individuals with the knowledge and tools necessary to navigate the complexities of the crypto market safely and effectively, focusing on transparency and sound investment principles. Explore our AI Crypto Market Platform for comprehensive market analysis and secure trading solutions.

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Source: MyNorthwest