Seems to me to be a big big thing. If anyone wants to elaborate I am all ears. On my web applications I just ask the question, “Who was buried in Grant’s tomb?” or “What was the color of Napoleon’s white horse?” .
Any static list of questions can be identified and automated by a bad actor. CAPTCHAs try to solve that, but create friction for the users. A frictionless CAPTCHA should be a better user experience.
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