Stefan Fenz

Stefan Fenz

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  • Phone: +43 (1) 505 36 88
  • Fax: +43 (1) 505 88 88

Bio

Dr. Stefan Fenz is senior researcher and project manager at Secure Business Austria and the Institute of Software Technology and Interactive Systems at the Vienna University of Technology. From January to March 2010 Stefan works as a visiting scholar at the Stanford Center for Biomedical Informatics Research at Stanford University. His research focuses on ontology engineering and applied concepts of IT security with an emphasis on information security risk management and business process analysis. Stefan received a Master in Business Informatics and a Master in Software Engineering & Internet Computing from the Vienna University of Technology, and a Master in Political Science from the University of Vienna. He has published numerous papers in refereed journals and at international conferences. Stefan finished his PhD thesis at the Vienna University of Technology at the Institute of Software Technology and Interactive Systems in a cooperation project with Secure Business Austria.

Personal website including latest list of publications

Publications

  • Stefan Fenz and Andreas Ekelhart and Thomas Neubauer, "Information Security Risk Management: In which security solutions is it worth investing?," Communications of the Association for Information Systems, 2011. BibTeX
    @ARTICLE{Fenz_Information_Security_Risk_Mana_2011,
      Author = {Stefan Fenz and Andreas Ekelhart and Thomas Neubauer},
      sbahotlist = {true},
      title = {Information Security Risk Management: In which security solutions is it worth investing?},
      journal = {Communications of the Association for Information Systems},
      year = {2011},
      month = {NA},
      note = {not published yet},
      }
  • Stefan Fenz and Andreas Ekelhart and Thomas Neubauer, "Information Security Risk Management: In which security solutions is it worth investing?," Communications of the Association for Information Systems, vol. 28, iss. 1, pp. 329-356, 2011. BibTeX | PDF
    @ARTICLE{Fenz2011a,
      Author = {Stefan Fenz and Andreas Ekelhart and Thomas Neubauer},
      sbahotlist = {true},
      title = {Information Security Risk Management: In which security solutions is it worth investing?},
      journal = {Communications of the Association for Information Systems},
      year = {2011},
      month = {5},
      pdf = {2011 - Fenz - Information Security Risk Management In Which Security Solutions Is It Worth Investing.pdf},
      volume = {28},
      number = {1},
      pages = {329-356},
      }
  • Stefan Fenz, "From the Resource to the Business Process Risk Level," in Proceedings of the South African Information Security Multi-Conference (SAISMC’2010), 2010, pp. 100-109. BibTeX | PDF
    @INPROCEEDINGS{fenz2010resource,
      Author = {Stefan Fenz},
      title = {From the Resource to the Business Process Risk Level},
      booktitle = {Proceedings of the South African Information Security Multi-Conference (SAISMC'2010)},
      year = {2010},
      month = {1},
      pdf = {fenz2010resource.pdf},
      pages = {100--109},
      }
  • Stefan Fenz and Andreas Ekelhart and Thomas Neubauer, "AURUM: A Framework for Supporting Information Security Risk Management," in Proceedings of the 42nd Hawaii International Conference on System Sciences, HICSS2009, 2009, pp. 1-10. BibTeX | PDF
    @INPROCEEDINGS{Ekelhart_AURUMFrameworkSupporting_2009,
      Author = {Stefan Fenz and Andreas Ekelhart and Thomas Neubauer},
      sbahotlist = {true},
      title = {AURUM: A Framework for Supporting Information Security Risk Management},
      booktitle = {Proceedings of the 42nd Hawaii International Conference on System Sciences, HICSS2009},
      year = {2009},
      month = {1},
      abstract = {As companies are increasingly exposed to a variety of information security threats, they are permanently forced to pay attention to security issues. Risk management provides an effective approach for measuring the security through risk assessment, risk mitigation and evaluation. Existing risk management approaches are highly accepted but demand very detailed knowledge about the IT security domain and the actual company environment. This paper presents AURUM - a new methodology for supporting the NIST SP 800-30 risk management standard - and provides a comparison with the GSTool and CRISAM in order to highlight the benefits decision makers may expect when using AURUM.},
      pdf = {2009 - Ekelhart - AURUM A Framework for Information Security Risk Management.pdf},
      pages = {1-10},
      publisher = {IEEE Computer Society},
      note = {978-0-7695-3450-3},
      }
  • Stefan Fenz and Andreas Ekelhart, "Formalizing Information Security Knowledge," in Proceedings of the 4th ACM Symposium on Information, Computer, and Communications Security, 2009, pp. 183-194. BibTeX | PDF
    @INPROCEEDINGS{Fenz_FormalizingInformationSecurity_2009,
      Author = {Stefan Fenz and Andreas Ekelhart},
      title = {Formalizing Information Security Knowledge},
      booktitle = {Proceedings of the 4th ACM Symposium on Information, Computer, and Communications Security},
      year = {2009},
      month = {1},
      abstract = {Unified and formal knowledge models of the information security domain are fundamental requirements for supporting and enhancing existing risk management approaches. This paper describes a security ontology which provides an ontological structure for information security domain knowledge. Besides existing best-practice guidelines such as the German IT Grundschutz Manual also concrete knowledge of the considered organization is incorporated. An evaluation conducted by an information security expert team has shown that this knowledge model can be used to support a broad range of information security risk management approaches.},
      pdf = {2009 - Fenz - Formalizing Information Security Knowledge.pdf},
      pages = {183-194},
      publisher = {ACM},
      note = {978-1-60558-394-5},
      }
  • Stefan Fenz and Andreas Ekelhart and Thomas Neubauer, "Business Process-based Resource Importance Determination," in Proceedings of the 7th International Conference on Business Process Management (BPM 2009), 2009, pp. 113-127. BibTeX | PDF
    @INPROCEEDINGS{Fenz_BusinessProcessbasedResource_2009,
      Author = {Stefan Fenz and Andreas Ekelhart and Thomas Neubauer},
      sbahotlist = {true},
      title = {Business Process-based Resource Importance Determination},
      booktitle = {Proceedings of the 7th International Conference on Business Process Management (BPM 2009)},
      year = {2009},
      month = {1},
      abstract = {Information security risk management (ISRM) heavily depends on realistic impact values representing the resources importance in the overall organizational context. Although a variety of ISRM approaches have been proposed, well-founded methods that provide an answer to the following question are still missing: How can business processes be used to determine resources importance in the overall organizational context? We answer this question by measuring the actual importance level of resources based on business processes. Therefore, this paper presents our novel business process-based resource importance determination method which provides ISRM with an efficient and powerful tool for deriving realistic resource importance figures solely from existing business processes. The conducted evaluation has shown that the calculation results of the developed method comply to the results gained in traditional workshop-based assessments.},
      pdf = {2009 - Fenz - Business Process-based Resource Importance Determination.pdf},
      pages = {113-127},
      publisher = {Springer},
      note = {accepted for publication},
      }
  • Stefan Fenz and Edgar R. Weippl and Andreas Ekelhart, "Semantic Potential of existing Security Advisory Standards," in Proceedings of the FIRST2008 Conference, 2008. BibTeX | PDF
    @INPROCEEDINGS{Fenz_SemanticPotentialof_2008,
      Author = {Stefan Fenz and {Edgar R.} Weippl and Andreas Ekelhart},
      title = {Semantic Potential of existing Security Advisory Standards},
      booktitle = {Proceedings of the FIRST2008 Conference},
      year = {2008},
      month = {1},
      abstract = {New discoveries made on a nearly daily basis and the constantly growing amount of vulnerabilities in software products have led to the distribution of great numbers of vendor dependent vulnerability information over various channels such as mailing lists and RSS (Really Simple Syndication) feeds. However, the format of these messages presents a major problem as it lacks standardized, semantic information, resulting in very time-intensive, expensive, and error-prone processing due to the necessary human involvement. Recent developments in the field of IT security have increased the need for a sound semantic security advisory standard that allows for automatic processing of relevant security advisories in a more precise and timely manner. This would reduce pressure on organizations trying to keep their complex infrastructures secure and up-to-date by complying with standards, such as Basel II and local legislations. This paper conducts an evaluation of existing security advisory standards to identify usable semantic standards, which enable the automated processing of security advisories to ensure faster reaction times and precise response to new threats and vulnerabilities. In this way IT management can concentrate on solutions rather than on filtering messages.},
      pdf = {2008 - Fenz - Semantic Potential of Existing Security Advisory Standards.pdf},
      }
  • Stefan Fenz and Edgar R. Weippl and Andreas Ekelhart and Gernot Goluch and Markus Steinkellner, "XML Security – A comparative literature review," Journal of Systems and Software, vol. 81, pp. 1715-1724, 2008. BibTeX | PDF
    @ARTICLE{Ekelhart_XMLSecurity_2008,
      Author = {Stefan Fenz and {Edgar R.} Weippl and Andreas Ekelhart and Gernot Goluch and Markus Steinkellner},
      sbahotlist = {true},
      title = {XML Security - A comparative literature review},
      journal = {Journal of Systems and Software},
      year = {2008},
      month = {1},
      abstract = {Since the turn of the millenium, Working Groups of the W3C have been concentrating on the development of XML based security standards, which are paraphrased as XML Security. XML Security consists of three recommendations: XML (Digital) Signature, XML Encryption and XML Key Management Specification (XKMS), all of them published by the W3C. By means of a review of the available literature the authors draw several conclusions about the status quo of XML Security. Furthermore the current state and focuses of research as well as the existing challenges are derived. Trends to different application areas - e.g. use of XML Security for Mobile Computing - are also outlined. Based on this information the analyzed results are discussed and a future outlook is predicted.},
      pdf = {2008 - Ekelhart - XML security -- A Comparative Literature Review.pdf},
      volume = {81},
      pages = {1715-1724},
      note = {ISSN: 0164-1212},
      }
  • Stefan Fenz and Thomas Neubauer and Bernhard Riedl and Veronika Grascher, "Pseudonymization for improving the privacy in e-Health applications," in Proceedings of the 41st Hawaii International Conference on System Sciences, HICSS2008, 2008, pp. 255-264. BibTeX | PDF
    @INPROCEEDINGS{Riedl_Pseudonymizationimprovingprivacy_2008,
      Author = {Stefan Fenz and Thomas Neubauer and Bernhard Riedl and Veronika Grascher},
      sbahotlist = {true},
      title = {Pseudonymization for improving the privacy in e-Health applications},
      booktitle = {Proceedings of the 41st Hawaii International Conference on System Sciences, HICSS2008},
      year = {2008},
      month = {1},
      pdf = {2008 - Riedl - Pseudonymization for Improving the Privacy in e-Health Applications.pdf},
      pages = {255-264},
      publisher = {IEEE Computer Society},
      note = {978-0-7695-3075-8},
      }
  • Stefan Fenz and Andreas Ekelhart and Gernot Goluch and Simon Tjoa and Stefan Jakoubi and Thomas Mueck, "Integration of an Ontological Information Security Concept in Risk Aware Business Process Management," in Proceedings of the 41st Hawaii International Conference on System Sciences, HICSS2008, 2008, pp. 377-385. BibTeX | PDF
    @INPROCEEDINGS{Goluch_IntegrationofOntological_2008,
      Author = {Stefan Fenz and Andreas Ekelhart and Gernot Goluch and Simon Tjoa and Stefan Jakoubi and Thomas Mueck},
      sbahotlist = {true},
      title = {Integration of an Ontological Information Security Concept in Risk Aware Business Process Management},
      booktitle = {Proceedings of the 41st Hawaii International Conference on System Sciences, HICSS2008},
      year = {2008},
      month = {1},
      pdf = {2008 - Goluch - Integration of an Ontological Information Security Concept in Risk-Aware Business Process Management.pdf},
      pages = {377-385},
      publisher = {IEEE Computer Society},
      note = {978-0-7695-3075-8},
      }
  • Stefan Fenz and Edgar R. Weippl and Markus Klemen and Andreas Ekelhart, "Security Ontologies: Improving Quantitative Risk Analysis," in Proceedings of the 40th Hawaii International Conference on System Sciences, HICSS2007, 2007, pp. 156-162. BibTeX | PDF
    @INPROCEEDINGS{Ekelhart_SecurityOntologiesImproving_2007,
      Author = {Stefan Fenz and {Edgar R.} Weippl and Markus Klemen and Andreas Ekelhart},
      sbahotlist = {true},
      title = {Security Ontologies: Improving Quantitative Risk Analysis},
      booktitle = {Proceedings of the 40th Hawaii International Conference on System Sciences, HICSS2007},
      year = {2007},
      month = {1},
      pdf = {2007 - Ekelhart - Security Ontologies Improving Quantitative Risk Analysis.pdf},
      pages = {156-162},
      publisher = {IEEE Computer Society},
      note = {0-7695-2755-8},
      }
  • A Min Tjoa and Stefan Fenz and Edgar R. Weippl and Markus Klemen and Andreas Ekelhart, "The Semantic Desktop: A Semantic Personal Information Management System based on RDF and Topic Maps," in Proceedings of the ODBIS Workshop, 31st International Conference on Very Large Data Bases (VLDB) 2005, 2005, pp. 135-151. BibTeX | PDF
    @INPROCEEDINGS{Weippl_SemanticDesktopSemantic_2005,
      Author = {{A Min} Tjoa and Stefan Fenz and {Edgar R.} Weippl and Markus Klemen and Andreas Ekelhart},
      sbahotlist = {true},
      title = {The Semantic Desktop: A Semantic Personal Information Management System based on RDF and Topic Maps},
      booktitle = {Proceedings of the ODBIS Workshop, 31st International Conference on Very Large Data Bases (VLDB) 2005},
      year = {2005},
      month = {10},
      pdf = {2005 - Weippl - The Semantic Desktop.pdf},
      number = {4623},
      pages = {135-151},
      }

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