How Good are Humans at Solving CAPTCHAs A Large Scale Evaluation

Elie Bursztein; Steven Bethard; Celine Fabry; Dan Jurafsky; John C. Mitchell

captcha

How Good are Humans at Solving CAPTCHAs A Large Scale Evaluation

By Elie Bursztein, Steven Bethard, Celine Fabry, Dan Jurafsky, John C. Mitchell @S&P 2010

captcha
study
web security
data mining

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We perform a mass-scale user study on how people react to the 21 most popular captcha schemes (13 images, 8 audios). This study reveals that even the most popular captchas scheme are often difficult for humans, with audio captchas being particularly problematic.

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@INPROCEEDINGS {
title	= {How Good are Humans at Solving CAPTCHAs A Large Scale Evaluation}
author	= {Elie Bursztein and Steven Bethard and Celine Fabry and Dan Jurafsky and John C. Mitchell}
booktitle	= {Security and Privacy(S&P)}
year	= {2010}
month	= {May}
url	= {\url{http://elie.im/publication/how-good-are-humans-at-solving-captchas-a-large-scale-evaluation}}
}