Captcha BlockingCaptcha Blocking is one of the security settings in the webpolls used to prevent cheating. When Captcha Blocking is enabled every user is taken to a confirmation page before their vote is counted. The confirmation page displays a scrambled sequence of digits that the they must retype into a confirmation box before their vote is counted.
Captcha Blocking is effective to prevent automated cheating by scripts, auto-voters. On it.s own, it won.t prevent users from voting multiple times, so we recommend you use either the IP or Cookie Blocking option as well.
Captcha stands for Completely Automated Public Turing-test to tell Computers and Humans Apart.
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