Here's what to know about the messaging app used by Trump Administration officials to discuss military strikes on Yemen.

We have probably all done it: Gossiped about a friend in an email, only to discover we accidentally included the friend in the correspondence. Or dashed off a sensitive text to Gene, our friend, and ...

Top Trump administration officials accidentally shared highly sensitive attack plans on Iranian-backed militants in Yemen with a journalist on the messaging app Signal. Signal is a free, encrypted ...

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 ...

Researchers have developed a new chip-sized microwave photonic filter to separate communication signals from noise and suppress unwanted interference across the full radio frequency spectrum. The ...