An inspector general’s investigation into Defense Secretary Pete Hegseth’s use of the Signal messaging app to discuss ...

A popular messaging app called Signal was recently the preferred communications platform for top officials in the Trump administration to discuss secret war plans. But the use of the app, widely ...

The Pentagon's internal watchdog has concluded a monthslong review of Secretary of Defense Pete Hegseth's improper use of the Signal app to discuss sensitive military operations.

Mike Waltz appears to be communicating with other Trump officials via a version of Signal a day before he was removed as White House national security advisor. A photo from a Cabinet meeting Wednesday ...

Defense Secretary Pete Hegseth used the Signal app to discuss timing of a March 15 strike against Houthis in Yemen. The Pentagon’s acting inspector general has launched a review into whether the use ...

After messages from Mike Waltz's leaked chat on the Signal app went massively public months ago, he was ousted as President Donald Trump's top national security adviser. Now, he's up for a new ...

The Signal messaging app has rolled out end-to-end encrypted backups for users' messages, using the zero-knowledge proof ...

Privacy-focused messaging app Signal announced on Monday that it's introducing a feature that allows users to back up their ...

LONDON (AP) — A magazine journalist’s account of being added to a group chat of U.S. national security officials coordinating plans for airstrikes has raised questions about how highly sensitive ...

Signal and WhatsApp are both end-to-end encrypted messaging apps, but they differ in ownership and data collection practices. WhatsApp, owned by Meta, collects metadata on users, while Signal, a ...