JoWUA

Abstract

Due to the quick development of mobile, ubiquitous, cloud, network and communication systems and applications, many computer and communication systems, wired or wireless, have been proposed to provide their users (human or other systems) with different services. However, hackers may anytime and anywhere attack these systems for stealing a company’s business secrets or a person’s credit card information, penetrating a system to show the achievement of their professional skills, preventing a system from providing its normal operations just for fun, etc. Also, a software system cannot be perfectly developed. So sometimes it may fail or out of services. To prevent a system from being attacked or intruded, we need various security mechanisms to protect our systems and the information delivered between/among them. To realize the probability of a system, we have to derive its reliability model and predict when it may fail. Then we can do something in advance. That is why information security and system reliability models have been important issues in recent computer and communication research. They are also the reasons why this special issue is created.