%0 Conference Proceedings %T On Users’ Preference on Localized vs. Latin-Based CAPTCHA Challenges %+ Department of Computer Science %+ Interactive Technologies Lab, HCI Group, Electrical and Computer Engineering Department %+ Industrial Systems Institute, Research Center “ATHENA” %A Fidas, Christos %A Voyiatzis, Artemios, G. %Z Part 1: Long and Short Papers (Continued) %< avec comité de lecture %( Lecture Notes in Computer Science %B 14th International Conference on Human-Computer Interaction (INTERACT) %C Cape Town, South Africa %Y David Hutchison %Y Takeo Kanade %Y Madhu Sudan %Y Demetri Terzopoulos %Y Doug Tygar %Y Moshe Y. Vardi %Y Gerhard Weikum %Y Paula Kotzé %Y Gary Marsden %Y Gitte Lindgaard %Y Janet Wesson %Y Marco Winckler %Y Josef Kittler %Y Jon M. Kleinberg %Y Friedemann Mattern %Y John C. Mitchell %Y Moni Naor %Y Oscar Nierstrasz %Y C. Pandu Rangan %Y Bernhard Steffen %I Springer %3 Human-Computer Interaction – INTERACT 2013 %V LNCS-8120 %N Part IV %P 358-365 %8 2013-09-02 %D 2013 %R 10.1007/978-3-642-40498-6_28 %K CAPTCHA %K Usability %K Security %K Native Language (non-Latin) systems %K localized CAPTCHA %Z Computer Science [cs]Conference papers %X A Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA) is a widely used security mechanism for constructing a high-confidence proof that the entity interacting with a remote service is actually a human being. Stimulated by the facts that: a) nowadays CAPTCHA challenges are solely based on the Latin alphabet, b) currently Internet population consists in its majority of non-native-English speakers and c) numerous web sites consist of exclusively localized content, we conducted an empirical study aiming to examine the effect of various factors on users’ preference in solving localized vs. Latin-based text CAPTCHA challenges. The study embraced a between-subject design using a self-developed localized CAPTCHA mechanism, capable of producing text challenges based on the participants’ native alphabet. A total of 384 non-native English speakers participated in the frame of the reported study which followed an ecological valid experimental design. Analysis of interaction results provides interesting insights which can be taken into consideration for designing more usable CAPTCHA mechanisms. %G English %2 https://inria.hal.science/hal-01510537/document %2 https://inria.hal.science/hal-01510537/file/978-3-642-40498-6_28_Chapter.pdf %L hal-01510537 %U https://inria.hal.science/hal-01510537 %~ IFIP-LNCS %~ IFIP %~ IFIP-AICT %~ IFIP-TC13 %~ IFIP-INTERACT %~ IFIP-LNCS-8120