It’s a more extensive use of the app than previously reported and sheds new light on how commonly the Trump administration’s ...

A number of the Signal group chat members have stayed relatively quiet about the incident. Those include Wong, Needham, Katz, ...

Trump’s former national security adviser lets loose on the leaked Signal group chat and Trump’s foreign policy.

Signal’s robust privacy features ... A current CISA employee told POLITICO that it was not an option for workers at the agency to download the app onto their government-issued devices.

The inquiry will examine whether the Pentagon chief violated the agency’s standards for sharing classified information.

Senate Intelligence ranking member Mark Warner (D-Va.) on Sunday slammed the White House officials involved in the Signal breach scandal, saying they risked American lives and calling into question ...

The team of President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the commercial ...

The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the ...

Democratic leaders of key House committees are reigniting calling for national security adviser Mike Waltz to step down.

Her quotes capped off a remarkable, weeklong stretch that began after The Atlantic’s editor-in-chief, Jeffrey Goldberg, ...

The Oklahoma Republican is one of few members of his party publicly calling for further investigation into the national ...