- Fang-Yie Leu
Department of Computer Science, Tunghai University, Taichung City, Taiwan
It is my great pleasure to sincerely welcome readers to the first issue of Volume 6 of Journal of Internet Services and Information Security (JISIS). I also want to congratulate on JISIS because it has successfully continued since its publication, and has played an important role in recent Internet and information security research society. This issue introduces novel technologies for cipher block chaining security, insider threat detection, quantitative non functional requirements evaluation, and proximitybased energy-efficient routing algorithm through the following four papers, which were selected after rigorous review and revision.