Securing IoT Devices: AI and Blockchain as a Dual Defense Mechanism
DOI:
https://doi.org/10.63084/algora.v2i2.67Keywords:
Internet of Things (IoT), Cybersecurity, Artificial Intelligence, Blockchain, Intrusion Detection Systems, Distributed Ledger Technology, IoT Network Security, Smart Device ProtectionAbstract
The rapid expansion of the Internet of Things (IoT) has transformed modern digital infrastructures by enabling seamless connectivity among devices across sectors such as healthcare, smart cities, transportation, and industrial automation. However, the large-scale deployment of IoT devices has also introduced significant cybersecurity risks due to limited device resources, heterogeneous architectures, and insufficient built-in security mechanisms. Conventional security approaches often rely on centralized models that struggle to address the dynamic and distributed nature of IoT environments. This study examines the integration of Artificial Intelligence (AI) and blockchain technology as a complementary security framework for protecting IoT networks against evolving cyber threats. The proposed approach combines AI-driven intrusion detection with blockchain-based trust management to strengthen threat identification, data integrity, and secure communication among devices. Machine learning models are employed to analyze network traffic patterns and detect anomalous activities associated with attacks such as botnets, distributed denial-of-service incidents, and unauthorized access attempts. At the same time, blockchain technology provides a decentralized ledger that records security events, ensures tamper-resistant data storage, and supports automated enforcement of security policies through smart contracts. Experimental evaluation using publicly available IoT cybersecurity datasets demonstrates that the integrated framework improves detection accuracy and reduces the risk of data manipulation while maintaining transparency and traceability across the network. The findings indicate that the combination of AI and blockchain provides a robust defense mechanism capable of addressing several limitations of existing IoT security solutions. This work contributes to the development of resilient and trustworthy IoT infrastructures capable of supporting large-scale digital ecosystems.
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