An unidentified hacker has gained access to a computer file shared in a secure link among lawyers whose clients have given damaging testimony related to Matt Gaetz, the former Florida congressman who is President-elect Donald J. Trump's choice to be attorney general, a person with knowledge of the activity said.
The file of 24 exhibits is said to include sworn testimony by a woman who said that she had sex with Mr. Gaetz in 2017 when she was 17, as well as corroborating testimony by a second woman who said that she witnessed the encounter.
The files were downloaded by a person using the name Altam Beezley at 1:23 p.m. on Monday, according to the person, who was not authorized to speak publicly. A lawyer connected to the case sent an email to the address associated with Altam Beezley, only to be informed in an automated reply that the recipient does not exist.
The material does not appear to have been made public by the hacker.