TeleMessage, a messaging application employed by former U.S. National Security Adviser Mike Waltz, has suspended its services ...

In the wake of SignalGate, a knockoff version of Signal used by a high-ranking member of Trump's Administration was hacked.

Three federal departments prohibited their employees from accessing TeleMessage — a message archiving app that former ...

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

The Vatican says it’s using signal jammers around the Sistine Chapel to prevent electronic surveillance or communication outside the conclave.

TeleMessage's modified Signal app, TM SGNL, used by Trump officials, has been found to allow plaintext chat access, leading ...

Ahead of the conclave to elect a new pope, a chimney has been installed atop the Sistine Chapel to signal when a new pontiff has been selected. NBC News' Anne Thompson describes how it works.

TeleMessage, an encrypted messaging app based upon Signal, has been temporarily suspended out of "an abundance of caution" ...

Sen. Ron Wyden (D-Ore.) is calling on the Department of Justice to investigate the risks associated with Trump administration ...

TeleMessage, a messaging app used by Trump adviser Mike Waltz, has suspended services after a hacker accessed sensitive ...

A new analysis of TM Signal’s source code appears to show that the app sends users’ message logs in plaintext. At least one ...

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