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, ...

Once little known outside government and finance circles, TeleMessage drew media attention after an April 30 Reuters photograph showed Waltz checking TeleMessage's version of the privacy-focused app S ...

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 ...

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.

While most of the intercepted messages were fragmentary and no classified information was found, some communications referenced the travel schedules of senior US officials ...

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