QR codes are everywhere these days, from being printed onto receipts to chiseled into granite tombstones. [Will] came up with a way to modify existing QR codes, and his hack has the potential to ...

Reeves warns you to not scan QR codes on unexpected packages you may receive. A package you didn’t order could be a fun surprise but be careful – especially if it comes with a QR code.

Recently [mit41301] wondered about increasing the data capacity of QR codes, and was able to successfully triple the number of bits using color. He chose the new rectangular micro QR code (rMQR ...