Daniel Friedberg, the former top lawyer for Sam Bankman-Fried’s FTX, has reportedly begun cooperating with U.S. prosecutors as they investigate the cryptocurrency firm’s collapse. What Happened: At a November meeting with two dozen investigators held at the U.S. Attorney for the Southern District of New York’s office, Friedberg provided details about FTX (CRYPTO: FTT), Reuters reported, citing sources familiar with the matter.