It scans you on several websites, most notably yelp.com It seems to use javascript and I realize its purpose is to help website users avoid the pain of captchas, but what exactly is it probing & learning about us and our devices? Does anyone know? Their website just kind of speaks in generalities. From their website:
How Device Check Works
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Signal Collection: When a request is made, Device Check collects various signals from the user’s device. This includes information about the device’s environment and behavior.
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Analysis: The collected signals are analyzed to identify any signs of automation or spoofing. This analysis is done in real-time and does not require the user to complete any challenges, such as CAPTCHAs.
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Decision Making: Based on the analysis, Device Check determines whether to allow the request, block it, or challenge it with additional verification if needed.