Tech
03 Sep 2026
7 min read
How QR Codes Store Information and Why They Still Scan When Damaged
QR codes appear on tickets, menus, product packaging, payment screens, Wi-Fi setup cards, and many other everyday objects. A phone can often point its camera at one and recover the information in a fraction of a second. Although a QR code looks like a random grid of black and white squares, its layout is highly structured. Some areas help a scanner locate and orient the symbol, while other areas contain encoded data and information that helps recover from errors.