“She perfectly dated her plan, taking advantage of the frantic speculation of the early days of cryptocurrency,” said Damian Williams, Manhattan’s attorney general. Williams described OneCoin as “one of the greatest Ponzi designs in history.” Ignatova disappeared in late 2017 after attacking an apartment belonging to her American boyfriend and learning she was working on an FBI investigation into OneCoin, Williams said. He boarded a flight from Bulgaria to Greece and has not been seen since, he said. The FBI is offering a $ 100,000 reward for information leading to the capture of Ignatova, said Michael Driscoll, FBI Assistant Director in New York. Driscoll declined to comment on Ignatova’s whereabouts. The agency adds fugitives to the list of most wanted when it believes the public may be able to help identify suspects. “He left with a huge amount of cash,” Driscoll told reporters. “Money can buy a lot of friends and I imagine it takes advantage of that.” Ignatova was indicted along with Mark Scott, a former corporate lawyer who prosecutors said laundered about $ 400 million for OneCoin. Scott was found guilty of money laundering conspiracy and bank fraud after a three-week trial in Manhattan federal court.