Making CAPTCHAs clickable

Richard Chow, Philippe Golle, Markus Jakobsson, Lusha Wang, Xiaofeng Wang. Making CAPTCHAs clickable. In Mirjana Spasojevic, Mark D. Corner, editors, Proceedings of the 9th Workshop on Mobile Computing Systems and Applications, HotMobile 2008, Napa Valley, California, USA, February 25-26, 2008. pages 91-94, ACM, 2008. [doi]

Abstract

Abstract is missing.