Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. It’s not clear whether the team at Signal believes the maxim that ...

According to the Atlantic, top White House officials used the end-to-end encrypted messaging app Signal to discuss military strikes in Yemen before those strikes were carried out on March 15. White ...

Top Trump administration officials were revealed this week to have been using the digital messaging app Signal to communicate sensitive details about an impending military strike against Houthi rebels ...

The messaging app Signal is making headlines again, with the news that U.S. Defense Secretary Pete Hegseth used it for a chat with his wife, his personal lawyer and others in which he shared sensitive ...

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 ...

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 used for—and what it shouldn’t. MIT Technology Review Explains: Let our ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet meeting, more than a month after he first came under intense scrutiny for ...

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 ...

The chat app, which is run by a nonprofit foundation, has been downloaded 220 million times. Here's what to know about Signal, including who owns it and whether it's safe to use. The messaging app ...