CAPTCHA is the acronym for "Completely Automated Public Turing Test to Tell Computers and Humans Apart" ("Turing Test to distinguish between humans and machines." As the name CAPTCHA already tells us, it is a test to determine probability the object under test is human, allowing administrators to distinguish between sites where the machines are. CAPTCHA is defined on the homepage of the University computer science from Carnegie Melon as follows:
CAPTCHA is a computer program that can generate and grade tests that:
* Most people can overcome
* The current computer programs can not pass
With the exponential growth of products and services on the Internet, online security becomes vital for service providers, managers, and even programmers.
Many software programs are written to impersonate human beings perform online tasks aimed bad. The "program disguised man" is seen as bots (short for robots) or spambots spambots.
Lanapsoft BotDetect CAPTCHA is a full-service security solutions effectively to prevent threatened.
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