Inside the OneCoin cryptocurrency pyramid scheme, which took in $4B between 2014 and 2016, as co-founder Ruja Ignatova remains at large and others await trial (James Marson/Wall Street Journal)

James Marson / Wall Street Journal:
Inside the OneCoin cryptocurrency pyramid scheme, which took in $4B between 2014 and 2016, as co-founder Ruja Ignatova remains at large and others await trial  —  Federal prosecutors allege Ruja Ignatova, known as the Cryptoqueen, sold the promise of riches—but was really running a pyramid scheme