One of the reasons why the CAPTCHA was introduced was to prevent bots from signing up and logging into various services. However sometimes the CAPTCHA used would be so hard to read that even humans had a tough time figuring it out, which is why Google created the reCAPTCHA that basically let users check a box to confirm they weren’t a box.
It is pretty convenient but it seems that Google wants to make it even simpler by introducing the invisible reCAPTCHA. This is a new system that does not even require any input from the user to confirm that they are indeed human and not a bot. Google doesn’t detail how it works except to say that it uses, “a combination of machine learning and advanced risk analysis that adapts to new and emerging threats.”
This service has yet to be put into effect but the good news is that Google is already accepting signups by companies who might want to take advantage of the new system. Since it isn’t in action yet it’s hard to speak for its effectiveness, but as it stands the current reCAPTCHA system that just requires users to check a box is pretty good, so if this eliminates any input whatsoever, then it should be much better.
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