How CAPTCHA Solvers Exploit Homoglyphs
CAPTCHAs—Completely Automated Public Turing tests to tell Computers and Humans Apart—are one of the most widely used mechanisms for deterring automated abuse of web services. Their primary purpose is to prevent bots from signing up for fake accounts, scraping data, or spamming web forms. Among the various types of CAPTCHAs, text-based image CAPTCHAs remain one…