In the world of Facebook, Instagram and other social media platforms, we typically find someone by their username. On messenger apps, however, we still largely find and save a new contact with a ...

Instead, you need to open and register Signal on the new phone and select an iOS transfer. Then you use a QR code to connect ...

Last month, the cryptographer and coder known as Moxie Marlinspike was getting settled on an airplane when his seatmate, a Midwestern-looking man in his sixties, asked for help. He couldn't figure out ...