The announcement comes after lawmakers voiced concern about whether top national security officials discussed classified ...

US media reported that the firings took place after US President Donald Trump met with far-right conspiracy theorist and influencer Laura Loomer.

Senior Trump administration officials have been accused of using the third-party app to discuss highly sensitive national ...

The Pentagon’s acting inspector general will review Defense Secretary Pete Hegseth’s use of the Signal app to coordinate strike plans against Houthi militants, raising security and records concerns.

The Pentagon’s acting inspector general has announced that he will review Defense Secretary Pete Hegseth’s use of the Signal messaging app to convey plans for a military strike against Houthi ...