Mystery of the disappearing 'Cryptoqueen' Ruja Ignatova bbc.com

If ever an industry needed a PR makeover, it's the world of cryptocurrencies.

It seems every week brings evidence of scams and fraud, from the hacking of exchanges to Initial Coin Offerings where the founder disappears with the money. Just on Monday, America's Securities and Exchange Commission charged the founder of an online adult entertainment marketplace with running a fraudulent ICO (Initial Coin Offering).

But that case involved tens of thousands of dollars – a mere bagatelle compared to the monster cryptocurrency scam whose story is being told in an enthralling BBC podcast.

In The Missing Cryptoqueen, Jamie Bartlett investigates the woman behind OneCoin, a scheme which managed to persuade investors around the world to part with as much as £4bn ($4.9bn)