I hate those printed coupons that come along with my grocery receipts. They’re too easy to forget or lose and too hard to redeem. I also hate loyalty cards, mail-in rebates, and all the other tricks ...

QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, phone numbers, or even coupons. QR codes are found everywhere from ...

Criminals are creating fake QR codes to scam unsuspecting people. Here's how to stay safe. As a way to reduce contact during the pandemic, businesses put QR codes to good use, enabling people to ...