Signal Private Messenger is available for free worldwide for both iOS and Android and allows its millions of users to send texts, videos, and files, make voice and video calls, and shield your ...

A magazine journalist's account of being added to a group chat of U.S. national security officials coordinating plans for airstrikes has raised questions about how highly sensitive information is ...

Right now, messages you send in messaging apps like WhatsApp, Signal and Threema are encrypted to guarantee that nobody else can read them - but what if, one day, a computer is invented that is able ...

Signal, an encrypted messaging service, lets you change the font size of the app's display and messages. You can change your font size in Signal on the platform's desktop, Android, and iPhone apps.