The advent of the UMTS mobile network technology and recent advances inwireless LANs create new possibilities for network and Internet access.This in turn may provide the basis for a range of new services, whichitself will change the roles of existing mobile firms and new entrants.A significant challenge for the industry will be safeguarding user dataand protecting network and end-user equipment from malicious attacks.These problems are currently the concern of desktop computer users andnetwork administrators, who are struggling to keep ahead of the latestsecurity threats. With the distributed nature of mobile devices it islikely that the management of network and end-user security will onlybecome more complicated. To better understand this challenge thisresearch has investigated the security features of a UMTS networktestbed as well as the possibilities of integration with WLANs at DelftUniversity of Technology in the Netherlands. In particular this researchaddresses the following questions from a user perspective: 1. Whatsecurity features are theoretically available in UMTS handsets and arelikely to be offered by UMTS network operators? 2. What factors arelikely to influence end user acceptance of these features? 3. What roledoes security play in UMTS/ WLAN integration? In addition to addressingthese questions this research also provided an opportunity to observecertain aspects of the relationship between the network operator andequipment manufacturer and handset providers, as well as the role ofstandards in the diffusion of a new technology. In what follows we firstdescribe the Delft UMTS testbed. This description provides the contextof the research as well as its limitations in terms of generalizabilityof results. This is followed by our findings, which are divided intosecurity, industry relations and standards, and handset issues. Section4 presents our conclusions and the report concludes with a series ofappendices, which contain detailed information about UMTS standards andsecurity features, WLAN technologies and WLAN & cellular network integration.
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