US legislators expressed concern in a recent hearing about AI developers using pirated websites for training.

Meta did not immediately return a request for comment on these internal communications.

UNITED STATES - JANUARY 31: Mark Zuckerberg, CEO of Meta, testifies during the Senate Judiciary Committee hearing titled “Big Tech and the Online Child Sexual Exploitation Crisis,” in Dirksen building on Wednesday, January 31, 2024. (Tom Williams/CQ-Roll Call, Inc via Getty Images)

Mark Zuckerberg, CEO of Meta, testifies at a Senate Judiciary Committee hearing on Jan. 31, 2024.Tom Williams/CQ-Roll Call, Inc/Getty Images