Students at Carnegie Mellon and MIT wrote programs to stuff the ballots for their schools, which might be the earliest electoral fraud as far as I know. As the poll system back then was not rigorous enough, only IP addresses of voters were recorded in order to prevent single users from voting more than once. In 1999, Slashdot, a social news website, released an online poll asking which was the best computer science graduate school in the US. It was first designed and patented in 1997. The original form of CAPTCHA as shown below is text-based, which fully utilized human reading-comprehension ability.
You will learn more about CAPTCHA invention and evolution, CAPTCHA creating and solving technology, and GeeTest CAPTCHA invention and implementation in this article.ĬAPTCHA (for Completely Automated Public Turing Test To Tell Computers and Humans Apart) is also known as HIP (for human interaction proof).
CAPTCHA plays a crucial role for defenders in this confrontation in terms of increasing the difficulty of online fraud, managing bot traffic, and offering risk management support, etc.
The confrontation between cyber attackers and defenders is becoming increasingly fierce along with the rapid evolution of online technology.