1 Introduction  
1.1 Related Works and Contributions  
1.2 Outline  
2 Research Methodology  
2.1 Research Questions  
2.2 Research Databases, Keywords, and Queries  
2.3 Inclusion and Exclusion Criteria  
3 Taxonomy of Privacy Issues in VR  
3.1 Threats to Associational Privacy  
3.2 Threats to Informational Privacy  
3.3 Threats to Physical Privacy  
3.4 Solutions for Strengthening Privacy in VR  
4 Taxonomy of Threats to VR Security  
4.1 VR-Specific Security Threats  
4.2 Generic Security Threats that Affect VR  
5 Authentication in VR  
5.1 Traditional and VR Interactions-based Authentication  
5.2 Biomechanics-based Authentication  
5.3 Authentication with Eye-Tracking Sensors  
5.4 Other Works in VR Authentication  
6 VR for Teaching, Training, and Evaluating Security and Privacy  
6.1 Teaching Cyber-Security  
6.2 Teaching Privacy  
6.3 Training Physical and Cyber-Physical Security  
6.4 Evaluating Cyber-Security Usability  
7 Conclusion