The FBI is offering a $100,000 reward for missing Bulgarian 'Cryptoqueen' and has added her to its top 10 most-wanted list

Ruja Ignatova has been added to the Federal Bureau of Investigation's ten most-wanted list.

The FBI is offering a reward for information that leads to the arrest of Ignatova.

Ignatova founded OneCoin, a Ponzi scheme.

Ignatova was wanted by the US for her arrest.

Ignatova went missing that same year. Ignatova traveled from Bulgaria to Greece in October of last year.

She might travel to the United Arab Emirates, Bulgaria, Germany, Russia, Greece and Eastern Europe.

Ignatova is believed to travel with armed guards and associates, according to the FBI. She might have had surgery to make her look different.

Ignatova's brother was arrested in March of this year after taking over One coin. Ignatova pleaded guilty to money laundered and fraud.

Ignatova was added to the list of Europe's most wanted people.