Donald Trump tore into a reporter questioning him on the details of the first rearrangement of his Cabinet since starting his ...

Message contents and government official contact information were obtained during the breach, 404 Media reports.

A hacker reportedly stole data, including the personal information of CBP officials, from TeleMessage, a messaging app Mike ...

The unofficial version of Signal used by Donald Trump’s former National Security Adviser Mike Waltz has been hacked, tech ...

A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials.

At a time when President Donald Trump is busy boasting his achievements in his first 100 days in office, his cabinet picks ...

More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen using what ...

Mike Waltz, the national security adviser for President Donald Trump, is seen in photos using Signal during a Cabinet meeting ...

For weeks, UN officials have been on tenterhooks waiting to see who US President Donald Trump would appoint as his ambassador ...

Mr Waltz came under searing scrutiny in March after revelations that he added journalist Jeffrey Goldberg to a private text ...

An unofficial version of Signal, TeleMessage, used by Mike Waltz, Donald Trump's former National Security Adviser, has ...