Usability of CAPTCHAs or usability issues in CAPTCHA design

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Authors: Jeff Yan Newcastle University, UK
Ahmad Salah El Ahmad Newcastle University, UK
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· Proceeding
SOUPS '08 Proceedings of the 4th symposium on Usable privacy and security
Pages 44-52
ACM New York, NY, USA ©2008
table of contents ISBN: 978-1-60558-276-4 doi>10.1145/1408664.1408671
Usability of CAPTCHAs or usability issues in CAPTCHA design Published by ACM 2008 Article
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