This course introduces students to big data, decision analytics, and the use of big data for decision making with an emphasis on security. The course starts with an overview of big data, data collection, data storage, data security, and regularity and compliance issues. The basic analytics will cover data analysis, prediction, classification, data anomaly, knowledge and pattern discovery, and simulation and decision making. The software package such as Analytic Solver Platform will be used in this course that provides a range of tools for visualisation of data, examining insights and generating security intelligence. The course will also study a number of real-world scenarios related big data use in security intelligence.