Multi-stage secure clusterhead selection using discrete rule-set against unknown attacks in wireless sensor network

Security is the rising concern of the wireless network as there are various forms of reonfigurable network that is arised from it. Wireless sensor network (WSN) is one such example that is found to be an integral part of cyber-physical system in upcoming times. After reviewing the existing system, it can be seen that there are less dominant and robust solutions towards mitigating the threats of upcoming applications of WSN. Therefore, this paper introduces a simple and cost-effective modelling of a security system that offers security by ensuring secure selection of clusterhead during the data aggregation process in WSN. The proposed system also makes construct a rule-set in order to learn the nature of the communication iin order to have a discrete knowledge about the intensity of adversaries. With an aid of simulation-based approach over MEMSIC nodes, the proposed system was proven to offer reduced energy consumption with good data delivery performance in contrast to existing approach

Technical Strategies Database Managers use to Protect Systems from Security Breaches

Healthcare organizations generate massive amounts of data through their databases that may be vulnerable to data breaches due to extensive user privileges, unpatched databases, standardized query language injections, weak passwords/usernames, and system weaknesses. The purpose of this qualitative multiple case study was to explore technical strategies database managers in Southeast/North Texas used to protect database systems from data breaches. The target population consisted of database managers from 2 healthcare organizations in this region. The integrated system theory of information security management was the conceptual framework. The data collection process included semistructured interviews with 9 database managers, including a review of 14 organizational documents. Data were put into NVivo 12 software for thematic coding. Coding from interviews and member checking was triangulated with corporate documents to produce 5 significant themes and 1 subtheme: focus on verifying the identity of users, develop and enforce security policies, implement efficient encryption, monitor threats posed by insiders, focus on safeguards against external threats, and a subtheme derived from vulnerabilities caused by weak passwords. The findings from the study showed that the implementation of security strategies improved organizations\u27 abilities to protect data from security incidents. Thus, the results may be applied to create social change, decreasing the theft of confidential data, and providing knowledge as a resource to accelerate the adoption of technical approaches to protect database systems rom security incidents