A manually constructed QR code offers a rare look into how digital information is stored using simple patterns. By assembling each module one square at a time, the process reveals the hidden logic ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. The simple answer, and the one most often provided in online ...

Did you ever watch Star Wars and wondered how people understood what R2D2 was saying? Maybe [Luke Skywalker] would enjoy learning to decode QR Codes by hand, too. While it might not be very practical, ...