Bayesian Model of Identified Causes and Mistakes

For more info about our services contact : help@bestpfe.com

Table of contents

1 INTRODUCTION
2 BACKGROUND
2.1 SCADA
3 RESEARCH PURPOSE, PROBLEMS AND GOALS
3.1 Project Purpose
3.2 Problem Domain
3.3 Goals
3.4 Research Questions
4 METHODOLOGY
4.1 Bayesian Networks
4.2 Mistakes Identified from Literature Studies
4.3 Interviews and Data Analysis Phase
4.3.1 Experts Profile
4.3.2 Phase I – Gathering Causes of Mistakes
4.3.2.1 Grouping of Similar Causes
4.3.3 Phase II – Probabilities of Causes
4.3.4 Phase III – Probability of Mistakes Using Conditional Probability Table
5 LITERATURE REVIEW – MISTAKES CAUSED BY HUMAN CARELESSNESS
5.1 List of Mistakes
5.1.1 Firewalls, IDS, Routers and Switches are Misconfigured
5.1.2 Issues regarding Network Design, Installation and configuration of operating system and software used in SCADA and/or corporate network
5.1.3 Ports and Services Remains Open after Installation of Operating System or Application
5.1.4 Wireless Link in Computer Network are Misconfigured
5.1.5 Default Setting of Devices are not Changed when Configuring
5.1.6 System Maintenance, Modification and Testing are not Completed Correctly
5.1.7 Access Control Policies in Computer Networks are not Implemented Correctly
5.1.8 Taking and restoration of backups are completed incorrectly
5.1.9 Updates and Patches of Operating System and Antivirus are not Manage Properly
5.1.10 Supporting Services or Facilities not Managed Properly
5.1.11 Improper Management of Peripheral Devices
5.1.12 Strong Password Policy is not Implemented Correctly and/or Password is Written down on Papers
5.1.13 Log Management not Completed Properly
5.1.14 Sensitive Information is Disclosed from Technical Staff by Means of Social Engineering
6 SURVEY RESULT AND ANALYSIS
6.1 Bayesian Model of Identified Causes and Mistakes
6.1.1 Identified Causes
6.1.2 Identified Mistakes
6.1.3 Influence of Causes on Mistakes
6.1.4 Validation of Results
6.1.5 Validate Effect of Presence of Causes
6.1.6 Validate Effect of Absesnce of Causes
6.1.7 Strength of Influence
7 MITIGATIONS
8 CONCLUSION
9 REFERENCE
10 APPENDIX A: SURVEY
10.1.1 List of Mistakes
10.1.2 Questionnaire Phase I, List of Causes
10.1.3 Questionnaire Phase I, Grouping of Similar Causes
10.1.4 Compilation of Questionnaire Phase I
10.2 Questionnaire Phase II, Priority/Ranking of Causes
10.3 Questionnaire Phase III, Conditional Probability Table
11 APPENDIX B:
11.1 Supporting Literature
12 APPENDIX C: BASIC DEFINITIONS