Watch: U.S. intelligence leaders testify in House after Signal flap

Central Intelligence Agency Director John Ratcliffe (R), accompanied by FBI Director Kash Patel (L), and Director of National Intelligence Tulsi Gabbard (C), speaks during a Senate Committee on Intelligence hearing on March 25.

The use of civilian software to discuss sensitive military and government matters came to light after a journalist from The Atlantic magazine said he was mistakenly added to a group chat on Signal.

(Image credit: Andrew Harnik)