Former White House national security advisor Mike Waltz and other Trump officials appear to be communicating on a modified version of Signal, despite President Donald Trump discouraging use of the ...

Signal Private Messenger is available for free worldwide for both iOS and Android and allows its millions of users to send texts, videos, and files, make voice and video calls, and shield your ...

A security breach in an unofficial version of the encrypted messaging app Signal has raised concerns about the vulnerability of communications within the highest levels of the US government, according ...

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 ...

A recently released FTC transcript offers an unusually detailed look at a tense meeting between Bezos and the agency over how he used the Signal app.

The Federal Trade Commission is seeking more information about Amazon employees' use of the messaging app. The company says its claims are "baseless." ...

National defense officials, including Secretary of War Pete Hegseth, used the Signal app to discuss military strikes in Yemen. That group chat raised security concerns, prompting an Inspector General ...

The Signal app used by federal agents came up during testimony in Day 2 of the federal trial of Judge Hannah Dugan in ...

A photo taken by Reuters' Evelyn Hockstein during a Cabinet meeting Wednesday shows Waltz holding his phone below the table, with the encrypted-texting app open and visible. It also shows Waltz in ...

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 ...