Title: Adaptation Concepts for Mobile Database Security

Mobile work including mobile devices and wireless links comprehends a row of problems concerning security issues like availability, conndentiality, and accountability. Mobile processed information in database systems are distributed, heterogeneous , and replicated. They are endangered by various threats based on user's mobility and restricted mobile resources of portable devices and wireless links. Since mobile circumstances can be very dynamic, standard protection mechanisms don't work very well in such an environment. This paper presents various possibilities of an adaptation in order to adjust security to the changing context dynamically and consider characteristics of the data. The purpose is to achieve both, suitable protection and saving mobile resources.