Bitfinex Hacker, Rapper Wife Plead Guilty in Crypto Heist (2)

One of the most enduring mysteries in the world of cryptocurrencies was resolved Thursday when Ilya Lichtenstein acknowledged that he was the hacker who executed the 2016 attack on the Bitfinex exchange.

Lichtenstein, along with his social-media rapper wife, who dubbed herself the “Crocodile of Wall Street,” pleaded guilty to a money-laundering conspiracy tied to the theft of billions of dollars of Bitcoin from the exchange. Who executed the exploit has been the biggest guessing games in crypto after the identity of Bitcoin’s pseudonymous creator, Satoshi Nakamoto.

Lichtenstein, 35, admitted during a hearing on Thursday before US District Judge Colleen ...