A Pentagon-wide advisory that went out one week ago warned against using Signal, the messaging app, even for unclassified ...

WASHINGTON — The Pentagon inspector general announced Thursday that it has launched an investigation into the leak of attack plans ... were associated with Signal chat blunder.

GOP Congressman Marlin Stutzman says he trusts Trump to determine the appropriate consequences for those involved in the ...

Defense Secretary Pete Hegseth on Tuesday fended off a reporter’s questions about a leaked Signal chat group about forthcoming strikes on the Houthis in Yemen.

Political fallout is mounting as some Republicans are breaking with the White House on the severity of the leak.

US Defence Secretary Pete Hegseth is facing a fresh legal trouble after Pentagon school students have filed a lawsuit against ...

The White House on Monday said it was “moving forward” from the fallout surrounding the leak of sensitive military plans to a ...

Dan Caldwell, a senior adviser to Defense Secretary Pete Hegseth, has been placed on administrative leave for an ...

Clinton reacted to the news of the Trump administration's use of Signal, writing on X, "You have got to be kidding me." ...

The president of Signal defended the messaging app's security on Wednesday after top Trump administration officials ...

Charlie Savage writes about national security and legal policy. What the Leak Revealed: Our reporters discuss what the Signal chat leak revealed about the Trump administration and the state of ...

Dan Caldwell, a top adviser to Defense Secretary Pete Hegseth, and Darin Selnick, Hegseth’s deputy chief of staff, have both ...