Comment by eddythompson80
16 hours ago
The camera isn't the part doing that verification. The google service serving that "reCAPTCHA" is what's doing that validation. Unless you're using a custom browser that is reporting a different domain to google than the one requesting the reCAPTCHA, google's service will know which domain is which.
How does the verification app on your phone know what's in the URL bar on your desktop?
The QR code/URL would be generated/requested by the javascript running on the website you're viewing, which knows what's in your address bar.
It would be generated by some other website like Amazon. Because I own, say, Meta, I copy these Amazon-generated codes over to Meta, make people scan them on their phones to sign into Meta and then pass the solution back to Amazon so my bots can sign into Amazon.
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