Sam Bankman-Fried’s weeks-long public relations blitz after FTX's collapse could already be coming back to haunt him, as the Securities and Exchange Commission reveals its first charges against the former crypto mogul.

The former FTX chief executive said last month that he did not know that $8bn-worth of customers’ cryptocurrency had built up at FTX’s sister trading firm, Alameda Research, because he “basically forgot” about a bank account holding the cash.