Usefulness of data flow diagrams and large language models for security threat validation: a registered report

• URL: http://arxiv.org/abs/2408.07537v2
• Date: Thu, 15 Aug 2024 09:30:35 GMT
• Title: Usefulness of data flow diagrams and large language models for security threat validation: a registered report
• Authors: Winnie Bahati Mbaka, Katja Tuma,
• Abstract summary: Threat analysis and risk assessment are used to identify security threats for new ored systems. There is a lack of definition-of-done, so identified threats have to be validated which slows down the analysis. Existing literature has focused on the overall performance of threat analysis, but no previous work has investigated how deep must the analysts dig into the material before they can effectively validate the identified security threats.
• Score: 1.8876415010297898
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The arrival of recent cybersecurity standards has raised the bar for security assessments in organizations, but existing techniques don't always scale well. Threat analysis and risk assessment are used to identify security threats for new or refactored systems. Still, there is a lack of definition-of-done, so identified threats have to be validated which slows down the analysis. Existing literature has focused on the overall performance of threat analysis, but no previous work has investigated how deep must the analysts dig into the material before they can effectively validate the identified security threats. We propose a controlled experiment with practitioners to investigate whether some analysis material (like LLM-generated advice) is better than none and whether more material (the system's data flow diagram and LLM-generated advice) is better than some material. In addition, we present key findings from running a pilot with 41 MSc students, which are used to improve the study design. Finally, we also provide an initial replication package, including experimental material and data analysis scripts and a plan to extend it to include new materials based on the final data collection campaign with practitioners (e.g., pre-screening questions).

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