How does recaptcha 3 know I'm using selenium/chromedriver? : <p>I'm curious how Recaptcha v3 works. Specifically the browser fingerprinting.</p>

<p>When I launch a instance of chrome through selenium/chromedriver and test against ReCaptcha 3 (<a href="https://recaptcha-demo.appspot.com/recaptcha-v3-request-scores.php" rel="noreferrer">https://recaptcha-demo.appspot.com/recaptcha-v3-request-scores.php</a>) I always get a score of 0.1 when using selenium/chromedriver. </p>

<p>When using incognito with a normal instance I get 0.3.</p>

<p>I've beaten other detection systems by injecting JS and modifying the web driver object and recompiling webdriver from source and modifying the $cdc_ variables. </p>

<p>I can see what looks like some obfuscated POST back to the server so I'm going to start digging there.</p>

<p>I just wanted to check if anyone was willing to share any advice or experience with this first about what it may be looking for to determine if I'm running selenium/chromedriver?</p>
