mCaptcha: Replacing Captchas with Rate limiters to Improve Security and Accessibility
A. S. Bharathi Manivannan, Sibi Chakkaravarthy Sethuraman, Devi Priya Vimala Sudhakaran · Communications of the ACM · 2024
To counter the threat of AI-powered bots, captcha systems are growing increasingly complex, often sacrificing usability and accessibility. Can mCaptcha, a proof-of-work captcha system, effectively address these issues?