Security State of 802.11 Wireless Networks - A Study of WLANs in Five Norwegian Cities
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This thesis was written to promote awareness of wireless network security to the ICT industry and the general public. It gives an overview of the current security state in Oslo, Bergen, Kristiansand, Tromsø and Flekkefjord. The data was gathered through war-walking and war-driving in the mentioned cities, and the results were deduced from an analysis of 35 194 wireless networks. The findings showed that 36 % was either unencrypted or encrypted with the deprecated WEP protocol. Through the analysis of these and other findings, this thesis discusses the role of parties influencing wireless network security. It also provides a description of potential consequences, followed by counter-measures and recommendations. The magnitude of insecure wireless networks is a major risk to Norwegian citizens and to the society itself.