The Trump administration's use of a popular app to discuss sensitive military plans — with a journalist on the text chain — ...

The military takes extraordinary measures to keep combat operations secret, cutting off outside communications for service ...

When top White House defense and national security leaders discussed plans for an attack on targets in Yemen over the ...

ANALYSIS: Who will lead the Holy Week liturgies? Will Francis meet in person with King Charles? These are just some of the ...

With news this week of the messaging app being used to discuss war plans, we get you up to speed on what Signal should be ...