NEW YORK — Onetime cryptocurrency mogul Do Kwon was sentenced Thursday by a New York judge to 15 years in prison after a $40 billion crash revealed his crypto ecosystem to be a fraud.Do Kwon, a SouthNEW YORK — Onetime cryptocurrency mogul Do Kwon was sentenced Thursday by a New York judge to 15 years in prison after a $40 billion crash revealed his crypto ecosystem to be a fraud.Do Kwon, a South


