This report investigates the integration of blockchain technology with the Internet of Things (IoT) to address security challenges. It begins by introducing the background of blockchain and IoT, outlining the research aim, objectives, and questions. The literature review covers blockchain technology, its features, and various methods of integrating it with IoT. It also discusses the challenges, benefits, and existing applications of this integration. The report further examines current trends and existing solutions for security challenges in blockchain, analyzing blockchain as a potential solution for different industries. The data analysis and discussion section focuses on improving supply chains and categorizing blockchain based on data access, evaluating blockchain platforms, and discussing findings. The study concludes by linking back to the objectives, providing recommendations, and suggesting further scope for research, emphasizing blockchain's role in securing data management within IoT environments.