The Internet of Things (IoT) Internet of Things (IoT) is a network of physical objects that are linked together over the internet in order to gather data and make deft choices. Nevertheless, IoT is vulnerable due to a lack of internal Security safeguards, and its overuse has resulted in a number of security and privacyPrivacy concerns. BlockchainBlockchain (BC) (BC), with its “security by design,” can assist in meeting important security needs within Internet of ThingsInternet of Things (IoT). Additionally, decentralized, blockchain ledgersBlockchain ledgers are kept up to date at every network node. Because of its flexibility and securitySecurity, blockchain technologyBlockchain technology makes managing large systems on it easier while still providing the benefits of decentralization. The majority of IoT’s architectural flaws may be fixed with the aid of BC features, including immutability, transparency, auditability, data encryptionData encryption, and operational resilience. As technology develops, this vision is coming to pass, but there are still issues that need to be fixed. This is particularly true in the security space, where data trust is concerned, and it is crucial to make sure that this excellent supply of data materializes, given the anticipated growth of the Internet of ThingsInternet of Things (IoT) in the upcoming years. In this article, we look into a few IoT operational frameworks, whether or not they can be integrated with blockchainBlockchain (BC) technology, and Security precautions staff need to take while deploying and using IoT and BCN. We also discuss underlying securitySecurity issues and suggestions for IoT networks withBlockchain integration blockchain integration.