AdCAPTCHA is a groundbreaking solution designed to thwart bot attacks through innovative media-based challenges, thereby ensuring genuine engagement. Its approach is distinctive, offering seamless integration with various media formats while billing only for authentic interactions. Promising privacy without relying on cookies or tracking mechanisms, AdCAPTCHA heralds a new era of secure, trustworthy engagement online. By incentivizing and reinforcing real human participation, it safeguards digital spaces against the pervasive threat of automated manipulation. In essence, AdCAPTCHA not only defends against malicious bots but also fosters a more authentic and meaningful connection between users and platforms.