TeleMessage, an Israeli software company that sells a modified version of the encrypted messaging app Signal to the U.S.

Hale acted out of moral conviction; Hegseth acted out of incompetence.

Trump previously discouraged his officials from using Signal following “Signalgate,” when Mike Waltz added a journalist to a ...

Despite the recent Signalgate scandal by national security adviser Mike Waltz, one White House official said that he would ...

President Trump recently discouraged the use of the Signal app after controversy over a group chat of administration ...

RONALD J. DEIBERT is Professor of Political Science and Director of the Citizen Lab at the University of Toronto Munk School ...

In recent weeks, we’ve learned that Secretary of Defense Pete Hegseth shared sensitive details about U.S. military strikes in ...

The chat, in which Defense Secretary Pete Hegseth laid out plans for an upcoming military strike in Yemen, inadvertently ...

President Donald Trump has named Mike Waltz as his next nominee for the U.S. ambassador to the UN after ousting him as his ...

Fired National Security Adviser Mike Waltz can‘t help but leak his Signal chats. Waltz, whose downfall was precipitated by ...

US President Donald Trump confirmed Thursday that he was replacing his national security advisor Mike Waltz following a chat ...

As sources on Thursday confirmed Mike Waltz’s exit from his post as national security adviser, the impact of the U.S.