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

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

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

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 ...

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

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

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

LITTLE ROCK (KATV) — Retired Army Colonel Marcus Jones, with a background in national security, shared his insights on the recent signal leak that has stirred public concern. "The only way it ...

A controversy surrounding a leaked Signal group chat involving officials discussing Houthi operations has prompted mixed responses, with President Trump defending his national security adviser while ...

“I do use Signal on sensitive issues but I do not use it [for classified information ... said Trump “continues to have the ...