A Framework for Modeling and Assessing Security of the Internet of Things

Internet of Things (IoT) is enabling innovative applications in various domains. Due to its heterogeneous and wide scale structure, it introduces many new security issues. To address the security problem, we propose a framework for security modeling and assessment of the IoT. The framework helps to construct graphical security models for the IoT. Generally, the framework involves five steps to find attack scenarios, analyze the security of the IoT through well-defined security metrics, and assess the effectiveness of defense strategies. The benefits of the framework are presented via a study of two example IoT networks. Through the analysis results, we show the capabilities of the proposed framework on mitigating impacts of potential attacks and evaluating the security of large-scale networks.