IT Security Stack Exchange
IT Security Stack Exchange

Questions tagged [qr-code]

A quick response code, or QR code, is a type of matrix barcode which stores data as square black markings within a square layout that should be readable by any computing device capable of imaging.

A quick response code, or QR code, is a type of matrix barcode which stores data as square black markings within a square layout that should be readable by any computing device capable of imaging.

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46 questions
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QR code issue. Am I in danger?

Someone had asked me to take a photo, “from my mobile phone” of what looked like a QR code and above that code was a string of numbers that was on “his mobile phone screen”.. (As he wanted to then read my screen, “the string of numbers” , to type it…
user214190
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Making it harder to scan on-screen QR-code from a distance

Say I have a QR-code on my laptop screen that I need to scan with my mobile device. Is there anything that can be done to make the on-screen code harder to scan from a distance? I am thinking for colors, contrast, movement, etc. At what point would…
Daniel
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QR code as certificate of authenticity

I need details about QR code that provides information about whether its product is original or not. The situation is a stamp that tells that this product has been certified as safe to be use by this safety boards. And its not for just one company.…
Haikal
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Looking for something like a QR code that cannot be copied/reproduced

Can QR codes always be copied? I am looking for some sort of QR code or chip that can be readily scanned (preferably via smartphone) and linked to a secure website, but that cannot be copied or reproduced in any way. Any thoughts?
Mitch
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