Officials said Ilya Lichtenstein, 34, and his wife, Heather Morgan, 31, were arrested on charges of conspiring to launder money. They are accused of trying to launder 119,754 bitcoin that were stolen after a hacker breached Bitfinex, a cryptocurrency exchange, and initiated more than 2,000 unauthorized transactions. Prosecutors said the bitcoin was sent to a digital wallet controlled by Lichtenstein.