A hacker breached TeleMessage, a government-approved messaging app used by Trump administration officials, exposing archived ...

A group of President Donald Trump’s cabinet members who inadvertently included the editor of the Atlantic in their Signal ...

A messaging service used by former National Security Advisor Mike Waltz has temporarily shut down while the company ...

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

TeleMessage, an instant communications app used by some US Government officials, has reportedly been hacked, with private ...

Defense Secretary Pete Hegseth will forgo his planned trip to Israel next week for a seat aboard Air Force One on President ...

The Trump administration ousted national security advisor Mike Waltz and other staffers with the National Security Council, ...

Mike Waltz was photographed using Signal in a Cabinet meeting the day before Trump announced he was replacing him as national ...

TeleMessage, an Israeli company that sells an unofficial Signal message archiving tool used by some U.S. government officials ...

The security of U.S. government officials’ communications has come under the spotlight again after a modified Signal app used ...

Former Federal Prosecutor Elliot Williams talks with Pamela Brown about whether it’s appropriate for Trump administration ...

Waltz was ousted Thursday, several weeks after the eruption of a scandal over his creation of a Signal group to share ...