Hurdle CAPTCHAs

Hurdle CAPTCHAs are a type of security test designed to verify that a user is human before granting access to a website or service. Unlike traditional CAPTCHAs that ask users to solve visual or written puzzles, hurdle CAPTCHAs set multiple challenges—or “hurdles”—that must be completed sequentially. These challenges often involve tasks like moving objects into specific areas, solving puzzles, or answering questions, making it more difficult for automated bots to pass. The goal is to accurately distinguish between human users and automated programs without overly inconveniencing genuine users.