MobiSys'14 Video: User-Generated Free-Form Gestures for Authentication: Security and Memorability (video) Rutgers University Share Print E-Mail Loading video... Caption As more people use smart phones or tablets to pay bills, make purchases, store personal information and even control access to their houses, the need for robust password security has become more critical than ever. A new Rutgers study shows that free-form gestures -- sweeping fingers in shapes across the screen of a smart phone or tablet -- can be used to unlock phones and grant access to apps. These gestures are less likely than traditional typed passwords or newer "connect-the-dots" grid exercises to be observed and reproduced by "shoulder surfers" who spy on users to gain unauthorized access. Credit Michael Sherman, Gradeigh Clark, Yulong Yang, Shridatt Sugrim, Arttu Modig, Janne Lindqvist, Antti Oulasvirta, and Teemu Roos; Rutgers University, Max-Planck Institute for Informatics and University of Helsinki. Usage Restrictions Permission is granted to reproduce the video in connection with news coverage of this story. All other rights are reserved. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.