#Binance Ruja Ignatova, known as “Cryptoqueen,” was the founder of OneCoin, a crypto investment scheme that was eventually proven to be a major scam. She disappeared in 2017 after allegedly embezzling around $4 billion from investors worldwide.

Launched in 2014, OneCoin was promoted as a cryptocurrency that would compete with Bitcoin. However, unlike Bitcoin, which is based on a transparent blockchain, OneCoin did not have a public blockchain that could be audited. OneCoin was eventually identified as a Ponzi scheme, where funds from new investors were used to pay returns to old investors, rather than from actual profits from the crypto business or technology.

In October 2017, after the FBI began investigating OneCoin, Ruja Ignatova mysteriously disappeared. Some reports say she was last seen in Athens, Greece, before vanishing without a trace. To this day, Ruja Ignatova remains an international fugitive, with the FBI offering a reward of up to $100,000 for information leading to her arrest.

The mystery of Ruja Ignatova's whereabouts continues to attract attention, given the large amounts of money she took and the impact this fraudulent scheme had on many investors around the world.