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Stealing payment card data and PINs from POS systems is dead easy

Network World

But there are easier ways to steal this sort of data, due to a lack of authentication and encryption between card readers and the POS payment applications. They typically run Windows and have peripherals like keyboards, touch screens, barcode scanners and card readers with PIN pads. POS systems are specialized computers.

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QR codes in AI and ML: Enhancing predictive analytics for business

Dataconomy

Explanation of QR code A QR code , also referred to as a quick response code or just a QR code, is a sort of barcode that is made to be quickly scanned and read by a smartphone or other specialized scanner. In the realm of AI and ML, QR codes find diverse applications across various domains.