ENHANCED SECURE LOGIN SYSTEM USING CAPTCHA AS GRAPHICAL PASSWORDS

Abstract

The Enhanced Secure Login System Using CAPTCHA as Graphical Passwords is an innovative authentication approach that integrates graphical passwords with CAPTCHA technology to strengthen user account security. Traditional text-based password systems are prone to attacks such as brute force, dictionary attacks, and phishing, making them vulnerable to unauthorized access. The proposed system enhances security by requiring users to select specific images or patterns from a set of CAPTCHA images during the login process. This method ensures that only human users can authenticate successfully, as automated bots cannot easily interpret or replicate the graphical CAPTCHA challenges. By combining human cognitive abilities with visual recognition tasks, this system offers both usability and robust protection against automated attacks. The approach provides a reliable and user-friendly authentication mechanism suitable for web applications, banking portals, and secure online services.