The prosecutor who put Bernie Madoff in federal prison for running a Ponzi scheme that defrauded investors of billions of dollars said Friday it’s “highly unusual” for Sam Bankman-Fried to be speaking publicly about the November collapse of his crypto platform FTX amid widespread allegations of fraud.

“It’s highly unusual for a subject of a high-profile criminal investigation to be conducting media interviews and public appearances during which he discusses the conduct being investigated,” Marc Litt, who prosecuted Madoff for the Southern District of New York in 2009, told The Hill.

“No criminal defense attorney I know would recommend doing that, and no matter how careful Mr. Bankman-Fried thinks he can be, it’s almost inevitable that something he says will come back to haunt him if charges are ever brought,” he said.