1 Want to see behavioral differences in action? Skip to Section 2 for interactive keystroke and mouse movement demos, or Section 3 for a cognitive psychology experiment. Google reCAPTCHA v3 boasts a commanding market share in bot detection today. It claims to analyze patterns of user behavior across the web, including mouse movements, typing patterns, and browsing history. However, reCAPTCHA v3 fails to detect AI agents using real browser environments. To illustrate, we tested OpenAI's Operator...