Democratic leaders of key House committees are reigniting calling for National Security Advisor Mike Waltz to step down.

Learn more about Signal, including whether the news about its use in a military intelligence breach impacts its effectiveness ...

This follows Monday’s reports that a magazine journalist was added to a group chat of national security officials talking about war plans. ‘Signal,’ the app used for the group chat ...

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 so-called vulnerabilities mentioned regarding Signal are not with the app or its security. Instead, the issues are related to what is always the weakest link with any digital communications ...

The people say Loomer made her case for the firings in an Oval Office meeting attended by Trump and other top officials.

Defenese Secretary Pete Hegseth, national security adviser Mike Waltz and more of the contacts who appeared in the Signal ...

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

In the aftermath of the Trump administration's military attack plans scandal, many are left wondering why sensitive national ...

Did Defense Secretary Pete Hegseth’s messages detailing planned U.S. airstrikes in Yemen constitute a classified war plan?

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