The communications app used by US President Donald Trump's former national security adviser, Mike Waltz, says it is ...

Last week, however, Waltz’s phone made headlines again: on Thursday, the same day that Waltz would be ousted from his ...

Updated An unidentified miscreant is said to have obtained US government communications from TeleMessage, a messaging and archiving app based on the open-source Signal app and used by ousted national ...

On Monday, a report from 404Media found that a hacker obtained direct messages and CBP contact information from TeleMessage ...

In a concerning turn of events for cybersecurity, TeleMessage, an app used by former National Security Advisor Mike Waltz to ...

An encrypted messaging app used by the Trump administration temporarily suspended its operations Monday after suffering a ...

A phone app that Mike Waltz, President Donald Trump’s former national security adviser, apparently used to save his text ...

A photo of Mike Waltz's phone appeared to show that he was using TeleMessage, an app that modifies Signal and other ...

After a hacker reportedly stole data from TeleMessage Signal that included references to CBP, the agency has now confirmed ...

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

The Trump administration’s favorite Signal clone, TeleMessage, has been hacked. The hacker got a hold of all kinds of ...

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