Analysis of the impact of permissions on the vulnerability of mobile applications.- On the Relevance of Using Multi-layered Security in the Opportunistic Internet-of-Things.- Analysis of Software Vulnerabilities Using Machine Learning Techniques.- Africa's Multilateral Legal Framework on Personal Data Security: What Prospects for the Digital Environment?.- A LoRaWAN coverage testBed and a multi-optional communication architecture for smart city feasibility in developing countries.- Effective Management of Delays at Road Intersections using Smart Traffic Light System.- Binary Search Based PSO for Master Node Enumeration and Placement in a Smart Water Metering Network.- State of Internet Measurement in Africa - A Survey.- I2PA, U-prove, and Idemix: An Evaluation of Memory Usage and Computing Time Efficiency in an IoT Context.- A Hybrid Network Model embracing NB-IoT and D2D Communications: Stochastic Geometry Analysis.- Data Management and IT Applications.- Laws and Regulations on Big Data Management: The Case of South Africa.- Big Data Processing Using Hadoop and Spark: The Case of Meteorology Data.- Mobile health applications future trends and challenges.- AmonAI: a students academic performances prediction system.- Factors Influencing the Adoption of M-Government: Perspectives from a Namibian Marginalised Community.- Recent Approaches to Drift Effects in Credit Rating Models.