Steffen Bartsch and M. Angela Sasse
Many organizations struggle with ineffective and/or inefficient access control, but these problems and their consequences often remain invisible to security decision-makers. Prior research has focused on improving the policy-authoring part of authorization and does not consider the full range of underlying problems, and their impact on organizations. We present a study of 118 individuals’ experiences of authorization measures in a multi-national company, and their self-reported subsequent behavior. Building on recent research that applies economic models to show the impact of lack of usability, we analyze the interrelations of authorization issues with individuals’ behaviors and organizational goals. Our results indicate that authorization problems significantly reduce the productivity and effective security of organizations. We analyzed the authorization problems of different stakeholders, and found they are mostly caused by the procedures for policy changes (e.g. long change lead-times) and the decision-making (e.g. inexperienced decision makers); the consequence is the circumvention of access control (e.g. by sharing passwords). As one research contribution, we develop a holistic model of authorization problems. More practically, we recommend to provide guidance for non-compliance, such as password-sharing, and to establish light-weight procedures for policy changes with adequate degrees of centralization and formalization, and support for decision-making.
Date: June 6, 2013 Presented: 21st European Conference on Information Systems, June 5-8, 2013, Utrecht, The Netherlands. Published: Proceedings of the 21st European Conference on Information Systems, June 5-8, 2013, Utrecht, The Netherlands. ISBN: 9789039361122 Publisher URL: http://www.staff.science.uu.nl/~vlaan107/ecis/files/ECIS2013-0402-paper.pdf Full Text: http://www.cs.ucl.ac.uk/fileadmin/UCL-CS/research/Research_Notes/RN_12_06.pdf