Yesterday i was reading an article about OneCoin and that was the biggest SCAM at cryptocoin's history and it was so amazing that despite my many years occupation with cryptocoins and technology it was the first time i heard about this. So i started to read about this.
Dr Ruja Ignatova at 2014 created the OneCoin - "bitcoin killer" (so Ruja referred at a speech of her) and persuad until 2017 the People to invest 6 Billions Dollars to this token. She gave many speeches about this cryptocoin (also at Wembley) and for this reason she persuaded so many people, from so many countries.
The story was simple people coul buy educational packages ranging from 100 euros to 118,000 euros or, according to one industry blog, 225,500 euros.
The only exchange you could convert the OneCoin was the OneCoin exchange but at 2017 suddenly closed and everyone lost his money. It was a big fraud and the only who arrested was her brother .
More statistics and reportage you can see at BBC