TeleMessage, a messaging application employed by former U.S. National Security Adviser Mike Waltz, has suspended its services following a cyberattack that compromised sensitive government and ...

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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Tulsi Gabbard, now the US director of national intelligence, used the same easily cracked password for different online ...

The US Department of Defense (DoD) is overhauling its "outdated" software procurement systems, and insists it's putting ...

A hacker breached TeleMessage, a government-approved messaging app used by Trump administration officials, exposing archived ...

Hackers say they have breached the message archiving system Trump officials have adopted since the Signal chat debacle in ...