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Many restaurants are now letting customers scan QR codes at the table to access digital menus. Windows run commands can be embedded within QR codes (and other forms of 2D barcodes) On the phone, QR codes can start phone calls, send text messages, or trigger an app's actions. It is trivial for a bad actor to replace a QR code at a restaurant table with a malicious code. The frictionless nature of QR codes make it easy to catch users off guard even without sophisticated exploits.
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