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@article{171847,
        author = {Hodade Pratiksha Satish and Krushna Babasaheb Dhadge and Gaurav AbhinayChaudhari and Riddhi Dattatray Waghmode and Prof.Madhavi Kulkarni},
        title = {A Deep Dive into CAPTCHA Mechanisms and Their Evolution},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {11},
        number = {8},
        pages = {1681-1688},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=171847},
        abstract = {This paper is a review on current text based, image-based, audio-base methods of CAPTCHA to make them easier for humans and harder for machines. It highlights the vulnerabilitie s of such systems to sophisticated machine learning attacks. Furthermore, the paper explores new ways to improve CAPTCHA security using adversarial machine learning techniques. It also discusses some changes like the game mechanism for fingerguessing, which is one of gamification techniques to improve user interaction and experience as well. This review provides an analysis of these developments to reveal the advantages and limitations different CAPTCHA methodologies as well potential for future advancements, underpinning the need for ongoing innovation in code design that is secure.},
        keywords = {CAPTCHA,Adversarial Machine Learning, User Experience, Image Recognition, Security Mechanisms.},
        month = {January},
        }