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" ...

President Donald Trump said Tuesday that he’s ordering a halt to nearly two months of U.S. airstrikes on Yemen’s Houthis, ...

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

By Erin Banco, Phil Stewart, Gram Slattery and Mike Stone NEW YORK/WASHINGTON (Reuters) - Roughly a week after Donald Trump ...

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