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

President Trump suggested Wednesday that the encrypted Signal messaging platform his top national security brass used to plan ...

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

A German news website said it was "particularly easy" to obtain Pentagon chief Pete Hegseth's private contact information.

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

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

Democratic leaders of key House committees are reigniting calling for National Security Advisor 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 ...

The national security adviser's use of the messaging app is under scrutiny after he mistakenly added a journalist to a ...

The White House has declared the controversy around a Signal chat for a military strike that inadvertently included a ...

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.

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