QR Codes: How Safe are They?, Office of Information Security
QR Codes & TV Ads – What We Can Learn From The Super Bowl Frenzy – Advertising Week
How to safely scan a QR code with your smartphone – CREDO Mobile Blog
Coinbase spent millions on Super Bowl ad with QR code. Then their website crashed
How QR Code Drones Set the Stage for Sky Advertising
What is a QR Code & How Can I Use One?
Stop scanning QR Codes! • TheTechieGuy
A Floating QR Code Was the Best Ad of the Super Bowl. There Was Just 1 Problem
QR Codes Grab Attention (Once Again) in This Year's Super Bowl Commercials — Sharethrough