Signal’s convenience and the lack of clear agency guidelines makes the commercial app a popular choice for government officials. But transmitting sensitive information is still prohibited.

The top Republican and Democrat on the Senate Armed Services Committee requested an investigation Thursday into how Trump ...

The Trump administration's use of a popular app to discuss sensitive military plans is raising questions about security and ...

The information Defense Secretary Pete Hegseth disclosed in the Signal chat of top Trump national security officials was ...

Sen. Mark Warner (D-Va.), vice chair of the Senate Intelligence Committee, said there is “no question” that the information ...

Trump administration officials are struggling to stem the fallout from revelations that top national security officials ...

But it is not part of the government communications network that's used when the most sensitive information is being discussed. "My communications, to be clear, in a Signal message group were entirely ...

Lawmakers are demanding answers after Trump-era officials used the Signal app to discuss military strikes. A federal judge ...

John Ratcliffe said in a Senate hearing that the use of Signal is permitted by the CIA.

Intelligence officials within President Donald Trump’s administration said Tuesday there was no classified information in the ...

"There was no classified information as I understand it," President ... MORE: Former intel officials: Signal chat did put troops at risk President Donald Trump speaks to the media in the Oval ...