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Latest Version [8.00202307241] Last Updated [Jul-24-2023]

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QR Code



QR Code (Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte / binary, and kanji) to efficiently store data; extensions may also be used.

A QR code consists of black modules (square dots) arranged in a square grid on a white background, which can be read by an imaging device (such as a camera, scanner, etc.) and processed using Reed-Solomon error correction until the image can be appropriately interpreted. The required data are then extracted from patterns that are present in both horizontal and vertical components of the image.
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PasswordSentry :: Security Blog ArticleTippaPatt / Shutterstock Joe Burton, Lancaster University The revelations this month that data on 40 million UK voters had been exposed to hackers came as no surprise to many cybersecurity experts, who have long pointed out the vulnerability of … Read More
PasswordSentry :: Security Blog ArticleIt seems near impossible to keep control of our personal data – and Facebook does anything but help. kalhh/Pixabay, CC BY David Glance, The University of Western Australia The London-based data analytics firm Cambridge Analytica has been accused … Read More


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