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Also, if you wanted to particularly target that site's slider for spamming, it isn't hard to do. "Although a checkbox "check here if you are not a bot" might s
by alexyim 16y ago
Also, if you wanted to particularly target that site's slider for spamming, it isn't hard to do.
"Although a checkbox "check here if you are not a bot" might serve to distinguish between humans and computers, it is not a CAPTCHA because it relies on the fact that an attacker has not spent effort to break that specific form. (Such 'check here' methods are very easy to defeat.) Instead, CAPTCHAs rely on difficult problems in artificial intelligence. In the short term, this has the benefit of distinguishing humans from computers. In the long term, it creates an incentive to advance the state of AI, which the originators of the term view as a benefit in its own right."
(from wikipedia)
- nihilocrat 16y agoDoes a question like "If George Washington had 20 white horses, how many grizzly bears did he own?" count? I always like those kind the best.
- generalk 16y agoThe answer to that type of question is always zero (or unanswerable with the given information). It's cute, but ineffective.
- flogic 16y agoThat type of thing would probably wind up being way too limited. It has to be generated and checked by a computer so it's going to tend towards a pattern and not be arbitrary enough. And as you make it more convoluted you're probably going to piss off the users more than slow down spammers.