When top White House defense and national security leaders discussed plans for an attack on targets in Yemen over the messaging app Signal, it raised many questions about operational security and ...

The leak of Houthi strike plans by the Trump administration to a journalist was not the result of a hack but an apparent human error. Still, it sparked debate over ...

Forbes contributors publish independent expert analyses and insights. Edward Segal covers crisis-related news, topics, and issues. The Signal encrypted messaging app is seen on a mobile device with ...