Web Hack List

Collected research

Text-based CAPTCHA Strengths and Weaknesses

A systematic evaluation of 15 text CAPTCHA schemes from major web sites, using a common methodology against the anti-segmentation defences each one relies on. Thirteen of the fifteen fell to automated attack. The paper distils design recommendations for CAPTCHA authors and attackers; the authors later marked it obsolete after generic text-CAPTCHA solving arrived.

Record

Researcher
Elie Bursztein, Matthieu Martin and John C. Mitchell
Published by
elie.net
Topic
Other

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This page is the archive's own catalogue record. The research is the work of Elie Bursztein, Matthieu Martin and John C. Mitchell, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on .