Mike Waltz seemed to use the app at last week's Cabinet meeting, according to a photograph published by Reuters.

Outgoing National Security Advisor Mike Waltz was photographed during a Cabinet meeting using an app labeled "TM SGNL". The app, which appeared to be a modified version of the encrypted messaging app ...

A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials. "I don't even know where to start with this," says one expert.

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

TeleMessage takes versions of popular apps and makes it possible to archive messages in adherence with government regulations ...

Review finds texts from over 60 government employees in hack of TeleMessage public records compliance service after ex-Trump ...

A hacker breached the communication service TeleMessage, used by former Trump adviser Mike Waltz, compromising over 60 ...

A hacker breached TeleMessage, a communications service used by U.S. officials, intercepting messages of over 60 government ...

A recent cyber breach involving the government-grade messaging platform TeleMessage has revealed that dozens of U.S. federal ...

TeleMessage TM SGNL, a version of the Signal messaging app, contains a hidden functionality vulnerability in which the ...

While most of the intercepted messages were fragmentary and no classified information was found, some communications ...

Days after former National Security Adviser Mike Waltz was caught using a knock-off Signal app, a hacker broke into the ...