Contents vii
3.2 Mobile Networks Security Landscape 59
3.2.1 Security Threats and Protection for 1G 61
3.2.2 Security Threats and Protection for 2G 62
3.2.3 Security Threats and Protection for 3G 63
3.2.4 Security Threats and Protection for 4G 63
3.2.5 Security Threats and Protection for 5G 66
3.3 Mobile Security Lifecycle Functions 70
3.3.1 Secure Device Management 71
3.3.2 Mobile OS and App Patch Management 71
3.3.3 Security Threat Analysis and Assessment 72
3.3.4 Security Monitoring 72
3.4 Conclusion 73
References 73
4 Design Principles for 5G Security 75
Ijaz Ahmad, Madhusanka Liyanage, Shahriar Shahabuddin,
Mika Ylianttila, and Andrei Gurtov
4.1 Introduction 75
4.2 Overviews of Security Recommendations and Challenges 76
4.2.1 Security Recommendations by ITU‐T 77
4.2.2 Security Threats and Recommendations by NGMN 78
4.2.3 Other Security Challenges 79
4.3 Novel Technologies for 5G Security 81
4.3.1 5G Security Leveraging NFV 82
4.3.2 Network Security Leveraging SDN 83
4.3.3 Security Challenges in SDN 84
4.3.4 Security Solutions for SDN 86
4.4 Security in SDN‐based Mobile Networks 88
4.4.1 Data Link Security 88
4.4.2 Control Channels Security 89
4.4.3 Traffic Monitoring 91
4.4.4 Access Control 91
4.4.5 Network Resilience 91
4.4.6 Security Systems and Firewalls 92
4.4.7 Network Security Automation 92
4.5 Conclusions and Future Directions 94
4.6 Acknowledgement 95
References 95
5 Cyber Security Business Models in 5G 99
Julius Francis Gomes, Marika Iivari, Petri Ahokangas, Lauri Isotalo,
Bengt Sahlin, and Jan Melén
5.1 Introduction 99
5.2 The Context of Cyber Security Businesses 100
5.2.1 Types of Cyber Threat 101
5.2.2 The Cost of Cyber‐Attacks 102