OneCoin: The $4 Billion Fake Cryptocurrency

On 25 October 2017 Ruja Ignatova, the woman who had told packed arenas that her coin would kill bitcoin, boarded a flight from Sofia to Athens. Nobody in authority has seen her since. Thirteen days earlier, on 12 October, a federal court in New York had charged her with wire fraud and money laundering conspiracy and issued a warrant for her arrest.

The company she left behind, OneCoin, had sold more than $4 billion of a cryptocurrency that, according to the US Justice Department, was never mined, never traded on any real market and worth nothing. OneCoin's own promotional material claimed more than three million people had bought in. Its internal records, cited by prosecutors, showed sales of €4.037 billion between late 2014 and late 2016.

The product

OneCoin was based in Sofia, Bulgaria, and began operating in 2014. It sold packages of "educational" trading material that came with tokens, and those tokens could be turned into OneCoins. It was sold through multi-level marketing: members earned commissions for recruiting others, who earned commissions for recruiting more, like a door-to-door cosmetics network in which the product happened to be a currency.

A real cryptocurrency such as bitcoin runs on a blockchain, a public ledger that anyone can inspect, like a share register that every investor holds a copy of. Coins are created by "mining", which means computers doing verifiable work. OneCoin claimed to have both. Prosecutors say it had neither: the coins were never mined, and from about March 2015 the company was allocating "fake coins" that did not exist even on its own private ledger.

The price was the purest fiction. OneCoin said it was set by supply and demand. In fact the company set it, and it rose from €0.50 to about €29.95 without ever falling once. No traded asset behaves like that. A share that only ever goes up, set by the company that sells it, is not a share.

The emails

The prosecution case leaned heavily on Ignatova's own words. In June 2014, while she and her co-founder Karl Sebastian Greenwood were designing the scheme, she wrote that the company could "set the price manually and automatically". In emails cited by the Justice Department, the pair referred to their product as a "trashy coin". In 2015 she wrote that they could "manipulate the exchange by simulating some volatility". And on 9 August 2014, listing options for an "exit strategy", her first was: "Take the money and run and blame someone else for this."

She preferred the stage. Ignatova, a German citizen born in Bulgaria, styled herself the Cryptoqueen and headlined OneCoin's recruiting events. Greenwood ran the recruiting network as its top distributor and was paid, prosecutors said, about €20 million a month.

The people who stayed

The men and women around Ignatova were not so lucky. Her younger brother, Konstantin Ignatov, took over the running of OneCoin after she vanished. He was arrested at Los Angeles International Airport in March 2019, pleaded guilty and became a cooperating witness. In March 2024 a judge in Manhattan sentenced him to time served, the 34 months he had already spent in jail.

Mark Scott, a former partner at the US law firm Locke Lord, was convicted by a jury in November 2019 of laundering money for the scheme, about $400 million by prosecutors' count. He was sentenced to 10 years in January 2024. Irina Dilkinska, OneCoin's former head of legal and compliance, was extradited to the US in 2023, pleaded guilty and was sentenced to four years in April 2024.

Greenwood was arrested at his home on the Thai island of Koh Samui in July 2018 and extradited to the US that October. He pleaded guilty to wire fraud and money laundering in December 2022. On 12 September 2023 Judge Edgardo Ramos sentenced him to 20 years in prison and ordered him to forfeit $300 million.

Where is the Cryptoqueen?

The FBI added Ignatova to its Ten Most Wanted Fugitives list in June 2022. In June 2024 the State Department raised the reward for information leading to her arrest or conviction to up to $5 million, placing her in the same reward bracket as drug-cartel bosses.

Nobody knows whether she is alive. In 2023 the Bulgarian investigative outlet BIRD published leaked police informant reports alleging that she had been killed on a yacht off Greece in November 2018 on the orders of a Bulgarian drug trafficker. Sofia's deputy prosecutor said his office did not treat the unsigned documents as evidence, no body has been found, and the claim has never been confirmed. Other investigators believe she is alive and protected by criminal networks.

The legal pursuit continues without her. In August 2024 the Sofia City Prosecution Office indicted her in absentia in Bulgaria. In September 2025 prosecutors in Bielefeld, Germany, charged Ignatova in her absence, partly to stop the clock on the statute of limitations. Their indictment covers only 2015 and 2016 and about 17,500 victims who lost an estimated €57 million through a payment company in Greven, in north-west Germany. On 5 October 2026 chief prosecutor Carsten Nowak said his office had recovered about €10.1 million of Ignatova's personal assets, from the sale of two London flats, to compensate victims. Investors who paid into the Greven accounts between 9 December 2015 and 15 August 2016 can register claims.

Against $4 billion, €10.1 million is about a quarter of one percent. It is also the first money from the founder's own fortune known to be heading back to the people who paid it.