Chinese Banknotes Stamped With QR Codes Breach Great Firewall

Centuries of invaders couldn't break the Great Wall of China, but a Chinese yuan can. Well, the "Great Firewall,” at least

A series of one yuan banknotes became a whole lot more valuable after being stamped with a quick response (QR) code — a type of matrix barcode that, when scanned by a smartphone, sends a user to a website stored in the code — that circumvents the infamous firewall.

Beneath the stamped QR codes are the words: “Scan and download software to break the Internet firewall.” Doing so leads to an Amazon cloud link that hosts downloadable software to get around the firewall.