Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. You may not have heard of the app called Signal, but its user ...

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 ...

A few weeks ago we witnessed an incident where military leaders inadvertently included a reporter in what was supposed to be a closed, secure communication channel, all due to the use of the Signal ...