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

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

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

The White House’s assertion that the case is closed surrounding national security officials’ use of Signal is getting ...

U.S. National Security Advisor Mike Waltz, who started the now-infamous group chat coordinating a U.S. attack against the ...

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

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

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

President Trump on Thursday confirmed a reported purge of national security agencies this week, with firings of at least a ...

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