The goal of this thesis is to map children users' theoretical knowledge of risks of the Internet. It deals with problems of cyberbullying, cyberstalking, sexting and cybergrooming in the youngest city of the Czech Republic, in Milovice. It describes the dangerous behaviour patterns that the children at the age of 11-15 years (i.e. the second stage of elementary schools) in that city are confronted with and that they tend to follow-up. The research shows how they perceive risks of the Internet and how much they trust strange people online. It finds out whether the children make relations with strangers and whether they meet them in real world, where they would look for help if needed and whether they are familiar with some projects focused on the Internet safety. The definition of risk factors of the new media and specification of child users are crucial for the thesis. The thesis also briefly describes Czech legislation connected with risks of cyberspace and outlines the profiles of the aggressors and their victims. It shows possible after-effects of cyber criminality on the real examples. It introduces various tools, projects and children and parents approaches that help them with the prevention and minimization of risks. The empiric part of the thesis is solved by quantitative method. In...

The master's thesis Cybercrime is a reaction to the increasing number of criminal activity related to the virtual space. It's main aim is to provide an overall description of this issue. Firstly the thesis presents theoretical problems regarding the definition of cybercrime. Following is an overview of international legislation and policy in the Czech Republic, EU, and USA. Second part is about two specific types of cybercrime - cyberstalking and cyberbullying. Not only are both defined theoretically, their respective participants (perpetrators, victims) and prevention are also described. Lastly the behaviour of adolescents online from the point of view of forming relationships and divulging personal information is presented.

The thesis deals with dangers connected with using of internet social network Facebook concerning mainly children and teenagers and it suggests possible ways to reduce these dangers. At the beginning Facebook principles and the basic psychological characteritics of the Internet, which are relevant also for Facebook, are presented. It implies some negatives and risks connected with using Facebook which are described in the next parts of the thesis. There is a focus on dangerous phenomena which include cybergrooming, cyberstalking and cyberbullying. The text deals with their prevention and possible resolution. The thesis discusses possible ways of prevention of risks of internet communication with the focus on Facebook and it presents projects dealing with the prevention in this area. Empirical part of the thesis examines relation between risk behaviour and awareness of dangers and safer using of Facebook. The questionnaire survey was made and it concerns pupils of the second grade of primary school from Kadaň. It also examines connection between risk behaviour and the frequency of meeting some undesirable situations described in the theoretical part and it deals with differences between boys and girls in this field.