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Erschienen in:
2017 | OriginalPaper | Buchkapitel
Threat Navigator: Grouping and Ranking Malicious External Threats to Current and Future Urban Smart Grids
verfasst von : Alexandr Vasenev, Lorena Montoya, Andrea Ceccarelli, Anhtuan Le, Dan Ionita
Erschienen in: Smart Grid Inspired Future Technologies
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Abstract
Deriving value judgements about threat rankings for large and entangled systems, such as those of urban smart grids, is a challenging task. Suitable approaches should account for multiple threat events posed by different classes of attackers who target system components. Given the complexity of the task, a suitable level of guidance for ranking more relevant and filtering out the less relevant threats is desirable. This requires a method able to distil the list of all possible threat events in a traceable and repeatable manner, given a set of assumptions about the attackers. The Threat Navigator proposed in this paper tackles this issue. Attacker profiles are described in terms of Focus (linked to Actor-to-Asset relations) and Capabilities (Threat-to-Threat dependencies). The method is demonstrated on a sample urban Smart Grid. The ranked list of threat events obtained is useful for a risk analysis that ultimately aims at finding cost-effective mitigation strategies.