SIASUN(SZ:300024) Huan Qiu Shi Bao·2025-04-10 22:45Core Viewpoint - The article discusses the evolution and current issues surrounding CAPTCHA systems, highlighting their ineffectiveness against advanced bots and the potential security risks they pose to users [1][2][3]. Group 1: CAPTCHA's Original Purpose and Evolution - CAPTCHA, which stands for "Completely Automated Public Turing test to tell Computers and Humans Apart," was invented in the late 1990s to prevent bots from abusing website resources [2]. - Initially designed to thwart spam and fake account creation, CAPTCHA has evolved from simple text distortions to more complex image and audio tests due to advancements in bot technology [3]. Group 2: Current Challenges and Risks - Recent studies indicate that advanced bots can nearly achieve 100% accuracy in solving distorted text CAPTCHAs, while human users only manage a success rate of 50% to 84% [3]. - The increasing complexity of CAPTCHAs leads to user frustration, often resulting in users abandoning web pages altogether [3][4]. - Cybersecurity experts warn that CAPTCHA is now being exploited by hackers as a tool for scams, particularly in investment fraud schemes [2]. Group 3: Alternatives and Future Directions - New technologies are being developed to identify human users without explicit CAPTCHA tests, such as monitoring mouse movements and typing patterns, but these raise privacy concerns [3][4]. - Biometric identification and government ID scanning are considered more reliable alternatives, yet their implementation faces challenges and public resistance [4]. - The current landscape suggests that while CAPTCHA is outdated and potentially harmful, effective and secure alternatives have yet to become widely adopted [4].