You probably see them all over. QR codes are getting more and more popular. But here's a caution from Jim Hamm. "The hackers don't miss an opportunity. Take a read on this article, and be cautious of QR codes."
Previously posted on this newsblog we called them "QR Tags"— see December 11, 2010; March 29, 2011; and January 29, 2012.
QR code, a “barcode on steroids” — abbreviation for Quick Response Code, a type of matrix barcode was first designed for the automotive industry, invented by the Toyota subsidiary Denso Wave in 1994 to track vehicles during the manufacturing process. Here are 84 accounts of the use of QR codes.