The Secret World of Coupon Fraud: Exploiting Barcode Vulnerabilities
(medium.com)
You’ve scanned barcodes countless times — UPC, EAN, and GS1 Databar — but have you ever wondered what they’re encoding? Until 2006, neither had I. That year, I started as a software engineer at Coupons.com, tasked with transitioning our coupons to the GS1 Databar system.
You’ve scanned barcodes countless times — UPC, EAN, and GS1 Databar — but have you ever wondered what they’re encoding? Until 2006, neither had I. That year, I started as a software engineer at Coupons.com, tasked with transitioning our coupons to the GS1 Databar system.