xploring the Usability of CAPTCHAS on Smartphones: Comparisons and Recommendations

Reynaga, GerardoChiasson, Soniavan Oorschot, Paul C.2015-08-142015-08-142015http://hdl.handle.net/1880/50941https://doi.org/10.11575/PRISM/46179xploring the Usability of CAPTCHAS on Smartphones: Comparisons and Recommendationsunknown10.14722/usec.2015.23006