The widespread use of mobile devices that enable Internet access increases the exposure of both individuals and organizations to cybercrime. This article addresses the issue of strategic prevention of cybercrime with the key focus on the measures to prevent cybercrime related to children and teenagers. The primary tool for such prevention is undoubtedly education aimed at establishing greater awareness and knowledge regarding illegal Internet content and cybercrime among children and teenagers, as well as parents and educators. As many children have Smartphones, special attention should be paid to Smartphones and other mobile devices. Awareness-raising can only be achieved with a combined effort of key stakeholders, which we attempt to achieve though interactive educational modules. Therefore, we have prepared blended learning courses aimed at raising the awareness of the stakeholders (i.e. children, teenagers, teachers, and parents) based on theoretical background, practical experience, and an analysis of questionnaires. Face-to-face lectures are combined with courses conducted with LMS system eCampus, which is developed for use on mobile devices and PC computers, thus ensuring extended effects of the developed modules on the level of awareness of children and teenagers, as well as parents and teachers. [For the complete proceedings, see ED557171.]