QR Codes: The nuts and bolts

David Hopkins, Elearning Blog Dont Waste Your Time, Jan 18, 2011
Commentary by Stephen Downes

Warning! Do not scan the QR code to the right. It will take you to one of the internet's most notorious and infamous web sites. I created the QR code using Kaywa. Maybe I'll make stickers of it and attach them to products in stores. What could you do? You scan the code and - horrors! - you are taken to this infamous web site. Maybe one day somebody will describe for me the defense against this attack. Until then, I cannot see the merit of taking a URL and encrypting it into a non-readable code. Just saying. (See also Ellen Wagner).
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