Defense Secretary Pete Hegseth used the Signal app on a personal computer in his office that was connected to the internet on an unsecured commercial line, what's known as a "dirty line," two sources confirmed to ABC News Thursday.

WASHINGTON (AP) — Defense Secretary Pete Hegseth had an internet connection that bypassed the Pentagon’s security protocols set up in his office to use the Signal messaging app on a personal computer, two people familiar with the line told The Associated Press.

Defense Secretary Pete Hegseth used a “dirty line,” which refers to an unsecured internet connection, to connect to the Signal app on a personal computer in his office, multiple outlets reported. A Pentagon spokesperson denied that Hegseth used an unsecured connection in a statement to the Associated Press and added that the “use of communications