A dozen current and former officials confirmed that the encrypted messaging app is used across various agencies — despite ...

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

Why Signal app is at the centre of US 'national security scandal' The Signal app is currently at the center of a significant ...

As fallout from a Trump administration group chat about a military attack in Yemen continues to unfold, some Democrats are ...

Secure messaging app Signal has been in the spotlight this week for national-security reasons, but companies can also learn lessons from the Trump administration’s misstep.

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

Four sources tell Politico they were aware of at least 20 chat groups, all four confirmed sensitive information was discussed ...

Why was the national security adviser doing the tedious administrative work of setting up a chat group that should have been ...

The Trump administration wants to move on but I want answers. We deserve to know how this happened.

Adding a journalist to a national security chat that included discussions about a military attack was a mistake. But let's ...

This is a serious issue. If any junior analyst in the U.S. government acted the way Waltz or Hegseth did, they would have ...

The Trump administration is still monitoring the fallout from the disclosure of attack plans, as a watchdog inquiry looms.