Chapter 1. Secure cyber-physical systems for improving transportation facilities in smart cities and industry 4.0 -- Chapter 2. Smart traffic management and secured framework for smart cities -- Chapter 3. Survey on risk-based decision-making models for trust management in Vanets -- Chapter 4. Detecting intrusions in cyber-physical systems of smart cities: challenges and directions -- Chapter 5. Secure routing protocols using trust-based mechanisms in the Internet of things for smart city environment challenges and future trends -- Chapter 6. Efficient cyber security framework for smart cities -- Chapter 7. Privacy preservation in smart grid environment -- Chapter 8. A review on cyberattacks: security threats and solution techniques for different applications -- Chapter 9. Threats and security issues in smart city devices.