In 2017, Comcast launched Xfinity Mobile: a wireless service that runs on Verizon wireless and Comcast’s own Wi-Fi hotspots. To make it easy for customers to port their existing phone numbers over from other carriers, the company used a shortcut: no PINs needed. Oh, except for one, default PIN of “0000,” that is, which made it super simple easy for crooks to hijack people’s phone numbers. Read More