The best laid plans or lack thereof: Security decision-making of different stakeholder groups

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Abstract

Cyber security requirements are influenced by the priorities and decisions of a range of stakeholders. Board members and CISOs determine strategic priorities. Managers have responsibility for resource allocation and project management. Legal professionals concern themselves with regulatory compliance. Little is understood about how the security decision-making approaches of these different stakeholders contrast, and if particular groups of stakeholders have a better appreciation of security requirements during decision-making. Are risk analysts better decision makers than CISOs? Do security experts exhibit more effective strategies than board members? This paper explores the effect that different experience and diversity of expertise has on the quality of a team’s cyber security
decision-making and whether teams with members from more varied backgrounds perform better than those with more focused,
homogeneous skill sets. Using data from 208 sessions and 948 players of a tabletop game run in the wild by a major national
organization over 16 months, we explore how choices are affected by player background (e.g., cyber security experts versus risk analysts,
board-level decision makers versus technical experts) and different team make-ups (homogeneous teams of security experts versus
various mixes). We find that no group of experts makes significantly better game decisions than anyone else, and that their biases lead
them to not fully comprehend what they are defending or how the defenses work.
Original languageEnglish
Number of pages13
JournalIEEE Transactions on Software Engineering
DOIs
Publication statusAccepted/In press - 7 Sep 2020

Structured keywords

  • Cyber Security
  • decision making
  • Jean Golding

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