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

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

Top national security officials — in the White House, the Pentagon and the State Department — couldn’t provide answers.

S oon after former National Security Adviser Mike Waltz appeared at the center of a major scandal over the use of messaging ...

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

Immediately after taking office in January, Pentagon chief Pete Hegseth issued an order to halt arms supplies to Ukraine ...