Chapter 1. IoT Network administration by intelligent decision support based on combined neural networks -- Chapter 2. A Novel Privacy-Preserving Framework based on Blockchain Technology to Secure Industrial IoT Data -- Chapter 3. Detecting Collusive Agents by Trust Measures in Social IoT Environments: A Novel Reputation Model -- Chapter 4. An Adaptive Blurring Routing Protocol for Delay Tolerant Networks in IoT Environments -- Chapter 5. Modeling and Detection of Denial-of-Sleep Attacks on Autonomous IoT Devices in Wireless Sensor Networks -- Chapter 6. Machine learning methologies for preventing malware obfuscation -- Chapter 7. Formation of Reliable Composite Teams for Collaborative Environmental Surveillance of Ecosystems -- Chapter 8. Accountability of IoT devices -- Chapter 9. Digital twin through physical assets tokenization in blockchain -- Chapter 10. Security in Home Automation.