If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its ...

Signal is the most secure messaging app for your smartphone, but a recent leak from a US government chat group has raised questions. So how safe is Signal and how do you use it properly?

Atlantic Editor-in-Chief Jeffrey Goldberg detailed a discussion that happened over the Signal messaging app hours before strikes on Iran-backed Houthi-rebels in Yemen ordered by U.S. President ...

After messages from Mike Waltz's leaked chat on the Signal app went massively public months ago, he was ousted as President Donald Trump's top national security adviser. Now, he's up for a new ...

However, if you use the app as intended, there are a lot of protections built into Signal to help prevent conversations from falling into the wrong hands. What is Signal, and what makes it private?