Cryptocurrency Exchange Says It's Investigating Hacking After Bankruptcy Filing

A day after it filed for bankruptcy, the collapsed cryptocurrency exchange FTX said that it was investigating “unauthorized transactions” flowing from its accounts, as crypto researchers documented suspicious transfers of $515 million that may have been the result of a hack or theft. John J. Ray III, the newly instated chief executive of FTX, said in a statement that “unauthorized access to certain assets has occurred,” and that the company was in touch with law-enforcement officials and regulators.