QR codes (sometimes referred to as 'tags') which is an abbreviation for 'Quick Response' allows mobile users to use a smartphone's camera to read a barcode (see image opposite - this is the QR code for my blog). A QR code can contain text and or a URL. You may have started seeing these on websites and in  magazines. They will be everywhere in time - on advertising boards, TV, websites you visit (e.g some sites might say "click this QR code to see the video"), travel signs, clothes, tickets, coupons, number plates - the list is endless. Then there is of course someone sticking their malicious QR code over an existing QR code. It's that easy! Read more...
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