TY - CONF T1 - Implicit authentication for mobile devices Y1 - 2009 A1 - Jakobsson, Markus A1 - Elaine Shi A1 - Golle, Philippe A1 - Chow, Richard AB - We introduce the notion of implicit authentication - the ability to authenticate mobile users based on actions they would carry out anyway. We develop a model for how to perform implicit authentication, and describe experiments aimed at assessing the benefits of our techniques. Our preliminary findings support that this is a meaningful approach, whether used to increase usability or increase security. T3 - HotSec'09 PB - USENIX Association UR - http://dl.acm.org/citation.cfm?id=1855628.1855637 ER -