Chování uživatelů na nezabezpečených Wi-Fi sítích

In this bachelor I deal with the security risks of unsecured Wi-Fi networks in public space, libraries, fast food restaurants or public transport. The main aim of the work is to evaluate user behavior on unsecured Wi-Fi networks. In the theoretical part I define history, basic concepts, Wi-Fi network standards and two selected forms of attack. The first is the "man in the middle" method, where the attacker is listening packets between the user and the router. Another method is Krack, the vulnerability of Wi-Fi, which appeared in the autumn of 2017. I describe these forms of attack in detail and make a suitable experiment to support/refuse the initial hypothesis. In the practical part I deal more with research based on data collection from informed participants of the experiment. The experiment was conducted through a survey. The user connects to the unsecured network, and I'm tracking exactly where they log on, collecting logons, age, education and gender. The work is evaluated in accordance with the rules of ÚOOÚ. The output of this work is analysis of user behavior on unsecured network and description of new security risks.