Inaccessibility of CAPTCHA

Matt May

Citation
Matt May, Inaccessibility of CAPTCHA, World Wide Web Consortium, Working Draft NOTE-turingtest-20051123, November 2005.
Descriptions
Abstract:

A common method of limiting access to services made available over the Web is visual verification of a bitmapped image. This presents a major problem to users who are blind, have low vision, or have a learning disability such as dyslexia. This document examines a number of potential solutions that allow systems to test for human users while preserving access by users with disabilities.

Resources

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