Designed as a high-tech marketing resource, QR (quick response) codes have many useful applications. These (usually) black-and-white algorithmic codes are gateways to a potential multimedia nirvana.
With the rising concern around QR code phishing scams or “quishing” (Report, October 28) we all need to think twice before scanning a QR code. If not, you or your employer could face financial theft, ...
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