We present the results of an online survey of smartphone unlocking (N = 8, 286) that we conducted in eight different countries. The goal was to investigate differences in attitudes towards smartphone unlocking between different national cultures. Our results show that...Despite the plethora of security advice and online education materials offered to end-users, there exists no standard measurement tool for end-user security behaviors. We present the creation of such a tool. We surveyed the most common computer security advice that...While individual differences in decision-making have been examined within the social sciences for several decades, this research has only recently begun to be applied by computer scientists to examine privacy and security attitudes (and ultimately behaviors)....We performed a laboratory experiment to study the privacy tradeoff offered by Facebook Connect: disclosing Facebook profile data to third-party websites for the convenience of logging in without creating separate accounts. We controlled for trustworthiness and amount...This report presents the findings of a study which investigated the outcome of password strength and the behaviour; and sentiment of users subjected to four different password-composition policies.