Welcome to Journal of Internet Services and Information Security (JISIS)!The primary purpose of JISIS is to provide an effective way for the dissemination of original research findings and advanced development results of interest in all areas of Internet services and information security. JISIS has four issues per each year. It welcomes original and high-quality contributions including regular papers, short papers, tutorials, book reviews and surveys. JISIS is an open access journal. Therefore, all papers will be peer-reviewed and, if accepted, freely downloadable at this website.