Taking the stand in an ill-fitting black suit, Wang, who co-founded both companies with Bankman-Fried, said that in July 2019, just shortly after the exchange opened for business, Bankman-Fried directed him to write code for FTX that would let Alameda’s account balance fall below zero. It was a secret feature that no other customer of the crypto exchange had, the insider-turned-government witness said.
