Contents: Cybersecurity, Data Privacy and Blockchain; Blockchain Technology and Related Security Risks; Cybersecurity for Blockchain-Based IoT Systems; Cybersecurity Challenges in Blockchain Technology; Dynamic Transaction Confirmation Sharding Protocol for Alliance Chain; Blockchain-Based Decentralized Architecture for Software Version Control; DDS: Deepfake Detection System through Collective Intelligence and Deep-Learning Model in Blockchain Environment; Process Authentication Through Blockchain: Three Case Studies; Scaling Ethereum 2.0s Cross-Shard Transactions with Refined Data Structures