Intrusion Response Systems: Past, Present and Future
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The rapid expansion of the Internet of Things and the emergence of edge computing-based applications has led to a new wave of cyber-attacks, with intensity and complexity that has never been seen before. Historically most research has focused on Intrusion Detection Systems (IDS), however due to the volume and speed of this new generation of cyber-attacks it is no longer sufficient to solely detect attacks and leave the response to security analysts. Consequently, research into Intrusion Response Systems (IRS) is accelerating rapidly. As such, new intrusion response approaches, methods and systems have been investigated, prototyped, and deployed. This paper is intended to provide a comprehensive review of the state of the art of IRSs. Specifically, a taxonomy to characterize the lifecycle of IRSs ranging from response selection to response deployment and response implementation is presented. A 10-phase structure to organize the core technical constituents of IRSs is also presented. Following this, an extensive review and analysis of the literature on IRSs published during the past decade is provided, and further classifies them into corresponding phases based on the proposed taxonomy and phase structure. This study provides a new way of classifying IRS research, thus offering in-depth insights into the latest discoveries and findings. In addition, through critical analysis and comparison, expert views, guidance and best practices on intrusion response approaches, system development and standardization are presented, upon which future research challenges and directions are postulated.
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