Millions of Brits fall for dangerous QR codes that can't be detected with naked eye — ‘approach with caution’
![an iphone is pictured on the right side of the picture with a broken screen trying to scan a qr code with blood splatter](https://www.gbnews.com/media-library/an-iphone-is-pictured-on-the-right-side-of-the-picture-with-a-broken-screen-trying-to-scan-a-qr-code-with-blood-splatter.png?id=51612003&width=1200&height=800&quality=90&coordinates=125%2C0%2C125%2C0)
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