CAPTCHA is a security technology designed to differentiate between human users and automated programs, preventing harmful actions like account creation by bots, brute force attacks, data scraping, and spamming through challenge-response tests. Various forms of CAPTCHA exist, including text-based, image-based, audio-based, and puzzle-based, each with distinct features such as character distortion, image recognition, accessibility for visually impaired users, and enhanced security through interactive puzzles. The article discusses the Bright Data Web Unlocker, a tool that employs machine learning and artificial intelligence to bypass CAPTCHA challenges, facilitating web scraping and data retrieval by optimizing proxy networks and customizing requests. It emphasizes the potential of such tools in automating CAPTCHA resolution while highlighting the importance of ethical and legal considerations in their use.