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PublicationTowards an approach to contextual detection of multi-stage cyber attacks in smart grids( 2021)Electric power grids are at risk of being compromised by high-impact cyber-security threats such as coordinated, timed attacks. Navigating this new threat landscape requires a deep understanding of the potential risks and complex attack processes in energy information systems, which in turn demands an unmanageable manual effort to timely process a large amount of cross-domain information. To provide an adequate basis to contextually assess and understand the situation of smart grids in case of coordinated cyber-attacks, we need a systematic and coherent approach to identify cyber incidents. In this paper, we present an approach that collects and correlates cross-domain cyber threat information to detect multi-stage cyber-attacks in energy information systems. We investigate the applicability and performance of the presented correlation approach and discuss the results to highlight challenges in domain-specific detection mechanisms.
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PublicationGraph-based model of smart grid architectures( 2020)The rising use of information and communication technology in smart grids likewise increases the risk of failures that endanger the security of power supply, e.g., due to errors in the communication configuration, faulty control algorithms, or cyber-attacks. Co-simulations can be used to investigate such effects, but require precise modeling of the energy, communication, and information domain within an integrated smart grid infrastructure model. Given the complexity and lack of detailed publicly available communication network models for smart grid scenarios, there is a need for an automated and systematic approach to creating such coupled models. In this paper, we present an approach to automatically generate smart grid infrastructure models based on an arbitrary electrical distribution grid model using a generic architectural template. We demonstrate the applicability and unique features of our approach alongside examples concerning network planning, co-simulation se tup, and specification of domain-specific intrusion detection systems.
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PublicationEnArgus: Zentrales Informationssystem Energieforschungsförderung( 2015)
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PublicationEnArgus - ontology based search( 2015)This paper presents the EnArgus Project - a project which aims to make energy research funding more transparent and includes the use and development of an ontology. The structure of the paper is as follows: first, we will present the EnArgus project, its domain, and its main goals. Next, we will describe the domain-specific ontology which we developed for EnArgus. This will lead to a description of how that ontology has been constructed and evaluated. Finally, we will discuss describe how the whole system has been evaluated.
