A hacker has been sentenced to five years in a US prison for laundering the proceeds of one of the biggest ever cryptocurrency thefts. Ilya Lichtenstein pleaded guilty last year in the case involving the Bitfinex cryptocurrency exchange being hacked in 2016 and the theft of almost 120,000 bitcoin. He laundered the stolen cryptocurrency with the help of his wife Heather Morgan, who used the alias Razzlekhan to promote her