A THREE-DIMENSIONAL FRAMEWORK FOR SECURITY IMPLEMENTATION IN MOBILE ENVIRONMENTS BETHUEL ROBERTO VINAJA Department of Computer Information Systems and Q.M., College of Business Administration, University of Texas Pan American, Email: vinajar@panam.edu Abstract: This paper describes a framework that can be used to identify security requirements for a specific mobile environment. The model includes three dimensions: mobile users, mobile hardware and mobile software. The analysis of the three dimensions can determine the characteristics of the specific implementation and needed security measures. Specific security measures for mobile hardware, mobile users and mobile software are also discussed. Security, Mobility, Mobile Agents, Mobile Computers, Wireless Key words: 1. INTRODUCTION The concept of mobility has become prevalent as the adoption of the Internet and wireless devices continues to grow. Strategy Analytic predicts that by 2004 there will be over one billion wireless device users and approximately 600 million wireless Internet subscribers. In this paper, we will examine the security aspects of mobility using a three-dimensional framework that analyses mobility in three aspects: mobile code, mobile hardware and mobile users. This framework distinguishes between three categories of mobility: hardware mobility, software mobility and user mobility.