PORTLAND, Ore. — A Ukrainian woman accused of helping operate a massive cryptocurrency fraud operation has been extradited from Thailand to the United States, where federal prosecutors say she played a central role in a sprawling $340 million Ponzi and pyramid scheme marketed as a decentralized investment opportunity.
Olena Oblamska, 42, appeared in federal court in Portland on Monday after arriving in the U.S. last week. She was arraigned on a charge of conspiracy to commit wire fraud, pleaded not guilty and was ordered detained pending trial, according to court records and prosecutors.
Authorities allege Oblamska was one of the promoters behind Forsage, a platform that claimed to offer investors access to blockchain-based “smart contracts” and network marketing opportunities. Prosecutors say the operation was presented online as a low-risk way to earn passive income through cryptocurrency, but in reality functioned as a classic Ponzi and pyramid scheme that took in roughly $340 million from investors around the world.
How prosecutors say Forsage operated
According to federal investigators, Forsage encouraged users to buy into the platform by purchasing a “slot.” Once a new participant entered the system, the money was allegedly routed automatically to earlier investors, rather than being used for any legitimate business activity or productive investment. That structure, prosecutors say, is a hallmark of fraud: returns paid with money from new recruits rather than from actual profits.
The platform was promoted heavily on its website and across social media, where it was described as a decentralized investment project built on blockchain technology. Prosecutors argue the marketing was designed to attract people unfamiliar with how cryptocurrency systems work and to create the impression that the scheme was innovative, technical and safe.
Federal authorities say the operation drew investors from multiple countries and became one of the most prominent crypto-related fraud cases in recent years. The alleged scheme’s global reach and use of buzzwords tied to decentralized finance helped it spread rapidly, according to investigators.
Extradition from Thailand
Oblamska’s extradition marks the latest step in a years-long international effort to bring Forsage figures to court. Prosecutors said she was transferred from Thailand and taken into U.S. custody before making her initial appearance in federal court in Oregon.
Her case is being handled in the U.S. District Court for the District of Oregon, where the government says the fraudulent investment activity caused substantial losses to victims worldwide. Officials have urged anyone who invested in Forsage to come forward as potential victims and to learn more about their rights in the case.
Oblamska is scheduled for a four-day jury trial beginning July 14, 2026. If convicted, she faces up to 20 years in federal prison, three years of supervised release and a fine of up to $250,000.
Part of a broader crackdown
The case is part of a broader law-enforcement crackdown on cryptocurrency scams that have used online marketing, influencer-style promotion and technical jargon to lure investors. In recent years, regulators and prosecutors have increasingly targeted schemes that promise easy returns through blockchain-based products but lack any legitimate underlying business.
Forsage has already drawn scrutiny from U.S. authorities. The Securities and Exchange Commission filed a civil complaint in 2022 against multiple individuals tied to the platform, and federal criminal charges followed in 2023. The extradition of Oblamska signals that investigators continue to pursue individuals allegedly involved in the scheme, even as many of its promoters have operated across borders.
Crypto fraud cases have become especially difficult for victims because money can move quickly across jurisdictions, sometimes through wallets, exchanges and intermediaries that are hard to trace. That has made international cooperation essential in cases like this one, where prosecutors say the alleged organizers were based abroad, while victims were dispersed around the globe.
What comes next
In court, Oblamska denied the charge against her. She remains in custody as she awaits trial later this summer. Prosecutors will need to prove she knowingly joined the scheme and helped advance it as a fraudulent enterprise rather than a legitimate investment platform.
The case is expected to center on how Forsage was presented to investors, what participants were told about expected returns and whether the platform’s operations matched the promises made in its promotional materials. If the government’s allegations are sustained, the trial could provide another high-profile example of how fast-moving crypto schemes can exploit public excitement around digital assets and decentralized finance.
For investigators, the extradition is a reminder that long-running financial fraud cases increasingly cross borders — and that defendants alleged to have helped orchestrate large-scale digital scams may still face prosecution years after the schemes were launched.