Wifi Security

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Security Issues in Smartphones and their effects on
the Telecom Networks
Master of Science Thesis in the program Networks and Distributed Systems SAGHAR KHADEM
Chalmers University of Technology
University of Gothenburg
Department of Computer Science and Engineering
Göteborg, Sweden, August 20102
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Security Issues in Smartphones and their effects on the Telecom Networks SAGHAR KHADEM
© SAGHAR KHADEM, August 2010.
Examiner: TOMAS OLOVSSON
Chalmers University of Technology
University of Gothenburg
Department of Computer Science and Engineering
SE-412 96 Göteborg
Sweden
Telephone + 46 (0)31-772 1000
Department of Computer Science and Engineering
Göteborg, Sweden August 20103
Abstract
Smartphones have become so popular these days because of their extra services and their extraordinary features compared to regular phones. They are very similar to PCs and laptops; therefore they encounter almost the same security problems and even worse with respect to memory and space limitations. Since the manufacturers focus on development of new features and fast release of new services more than security issues, security in smartphones is usually neglected. Smartphones as opposed to ordinary mobile phones use different technologies, so they are more exposed to different attacks. In addition, they are interoperating devices which work between the Internet and telecom networks, so they can bring Internet security threats to the telecom networks and cause serious damages and endanger critical call centers. In this thesis security issues and different attacks against smartphones are presented and some countermeasures against the different types of attacks are introduced. In addition, certain security threats that Internet compromised smartphones have brought to the telecom networks and some solutions in order to make these threats ineffective are discussed.4 Preface

This is a graduation thesis for Master of Science degree in Network and Distributed Systems. The examiner is Tomas Olovsson in the computer security group at Department of Computer Science and Engineering, Chalmers University of Technology. This thesis work is performed by Saghar Khadem during the period March 2010 to August 2010. I would like to thank my examiner Tomas Olovsson for invaluable support, pointers and discussions.5 Table of Contents

Abstract ......................................................................................................................................3 1. Introduction.............................................................................................................................9 1.1. Scope................................................................................................................................9 2. Background...........................................................................................................................10 2.1. General Attacks ..............................................................................................................10 2.1.1. ARP poisoning...
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