Guest Editorial: Managing Insider Security ThreatsParallel big data processing system for security monitoring in Internet of Things networksLocation-Aware and Mobility-Based Performance Optimization for Wireless Sensor NetworksResource-Efficient Hardware Implementation of a Neural-based Node for Automatic Fingerprint ClassificationComparing Alternatives to Measure the Impact of DDoS Attack Announcements on Target Stock PricesMobile Traffic Accident Prevention System based on Chronological Changes of Wireless Signals and SensorsMulti-Layer Network Architecture for Supporting Multiple Applications in Wireless Sensor NetworksVideo Games and Virtual Reality as Persuasive Technologies for Health Care: An OverviewA Scalable and Secure MANET for an i-Voting SystemClickPattern: A Pattern Lock System Resilient to Smudge and Side-channel Attacks