Donald Trump's national security adviser Mike Waltz has already been ousted for using a crappy Signal clone — but the fallout ...

It looked like Signal (popular because it's allegedly secure), but it was actually a modified version of it, called TM SGNL, ...

A hacker who breached the communications service used by former Trump national security adviser Mike Waltz earlier this month ...

A hacker has breached TeleMessage, a Signal fork used by Trump's cabinet and other US officials for communications.

These included personnel from disaster response teams, U.S. Customs and Border Protection, diplomatic corps, a White House ...

Reuters identified more than 60 government users of the messaging platform TeleMessage in a cache of leaked data provided by ...

A hack of the Signal app clone used by the Trump administration exposes messages and metadata for over 60 involved government ...

A hacker has infiltrated a secure US government messaging app, exposing messages from over 60 officials across multiple federal agencies.

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

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

TeleMessage drew media attention after a Reuters photograph showed Mike Waltz checking its version of Signal during a cabinet ...