3 ms·

I think parent means hCaptcha enterprise in passive mode, where hCaptcha is detecting bots in the background using ML: botstop.com

• aftbit 6y ago
  Surely this ML must be presented a wide set of data on the user and their browser to make this determination? So just like recaptcha, they determine if they should admit you based on passively snooped data rather than active challenges.
  • ve55 6y ago
    My knowledge of this is that hCaptcha uses anonymized user data to ensure that the user doesn't look like a bot. What ReCAPTCHA did differently is not only not anonymizing data, but specifically trying to find out which person was presented with their captcha by matching cookies and profiles to Google accounts (which the majority of users would have and be logged into for many reasons). When you combine this with Google owning everything from Gmail to Youtube to Android to Chrome, it gets extremely pervasive.
    • londons_explore 6y ago
      hCaptcha's ML is 90% "Is the user agent the newest version of Chrome? -> Not a bot, Otherwise -> Bot"