People interact daily with IT systems and communication over the Internet has become an important part of many people's lives. With more users than ever a vast amounts of information is being handled and society demands for an increase of IT-security. When it comes to the protection of integrity, availability and confidentiality of Internet usage for home-users, mostly technical measures are in focus, such as firewalls and antivirus soft-ware. The technical measures protect the user of some extent, but not enough to prevent a comfortable style and a naive human behavior. When security breaks it usually depends on the human factor.We used a deductive research approach in order to answer the research question: given what the home-user know about IT-security, do they act based upon what they know when they interact with IT-systems. Data was gathered through interviews and observa-tions with three home users. The empirical data is presented through quotations of the respondents as well as a content analysis where our accumulated data is compared with the overall theory. The study is qualitative and examines how security aware home-users are when interacting with IT systems and how they relate to their knowledge of safety in action. The conclusion is that home-users know more about IT-security than they use when they interact over the Internet. It is based on ideas such as "it does not happen to me" and "the system still has some responsibility." Safety shouldn’t be a hindrance in home-users daily interaction. We believe that future developers of systems need to focus on improving the security of IT-systems, so they are even more designed for interaction with home-users. The study ends with several suggestions for further research.