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Recaptcha is a system to determine if a visitor to a site is a human being or fined by asking for a response that a fine can not execute. The first version allowed the visitor to enter text based on an image with a distorted image of the text.
Version 2, used up to now, and which often causes some irritation among users, allows the user to click in the boxes of an image, where the frames contain a certain object, such as a bicycle or a traffic light. Or just click on a box that says "I'm not a robot". However, version 2 of Recaptcha still means a drop in advance when visitors have a 50% chance to pass control in one click.
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However, according to Google, the latest version totally excludes the user interaction, writes Bleeping Computer.
"Recaptcha version 3 uses an adaptive risk analysis in the background to warn the site owner of any suspicious traffic while providing the user with a frictionless experience," Google wrote in a statement.
The secret that makes users happy is a concept called "Action" that analyzes the behavior of visitors to the site and makes it possible to distinguish automated responses more accurately. Google recommends putting Recaptcha v3 in place on several pages of the site in order to Models that can be correlated with human interactions: these are on a scale of 0.1 to 1.0 to determine suspicious behavior.
Web administrators can use scoring tables to determine thresholds to allow users to pass or check additional controls, such as two-factor authentication or telephone verification.
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The data collected can also contribute to machine learning of computer hardware to combat unwanted behavior. They can also be combined with other signals made available to administrators to protect hidden fund sites.
Recaptcha version 3 is the subject of a one-year test to tweak the system, collect user responses and determine how sites respond to problems.
Google's documentation for Recaptcha version 3 is available here.
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