Integration of Blockchain with AWS and Azure for Enhanced Cloud Security and Compliance in Multi-Cloud Architectures Balkrishna Patil Independent Researcher Elk Grove, California bm19875@gmail.com Abstract—The research work proposes the integration of blockchain with AWS and Azure to enhance cloud security and assure compliance in multi-cloud architecture. Using real- world datasets, such as anonymized security logs and compliance records from public cloud repositories, this paper examines the possibility of blockchain providing immutable audit trails, secure transaction records, and automated compliance verification. Our approach integrates blockchain protocols into the AWS and Azure environments to increase trust and transparency while reducing the inherent vulnerabilities of distributed cloud systems. We show, through a series of experiments and analyses, that blockchain not only streamlines the enforcement of security policies but also improves incident response times to reduce the risk of data breaches and unauthorized access. It is a source of credible insights for the enterprises seeking to get their way around modern multi-cloud deployments in order to have robust, compliant, and secure infrastructures. Index Terms—Blockchain, AWS, Azure, Cloud Security, Multi- Cloud Compliance I. I NTRODUCTION Cloud computing has emerged as the backbone of modern enterprise IT infrastructure in today’s fast-evolving digital environment. Enterprises are increasingly depending on public cloud platforms, including Amazon Web Services and Mi- crosoft Azure, to store a large amount of data and host critical applications. However, with multi-cloud environments growing increasingly complex, strong security and stringent regulatory compliance have become an increasingly daunting task. In this perspective, the inclusion of blockchain in cloud architectures leads to promising vistas regarding security, transparency, and accountability. Blockchain, initially popularized by Bitcoin [1], has grown far beyond its initial application in cryptocurrencies. Its in- trinsic properties of decentralization, immutability, and cryp- tographic security have made it an attractive candidate in the quest to remedy the inherent vulnerabilities of central- ized systems. Recent studies have started to investigate how blockchain can be leveraged to secure cloud infrastructures [2], [3]. These studies have identified blockchain’s potential for providing verifiable audit trails, automating compliance checks, and reducing data tampering risks. Multicloud architectures, leveraging the strengths of differ- ent CSPs such as AWS and Azure, have become a strate- gic choice for organizations in their effort to avoid vendor lock-in, optimize costs, and achieve high availability. Yet, the distributed nature of these environments creates complex security challenges. Data and workloads are spread across different platforms, each with its own security protocols and compliance standards. This increases the complexity of a single security posture and assurance about the compliance with regulations for all parts of the infrastructure. State-of-the- art cloud security best practices have focused on continuous monitoring, automated threat detection, and incident response according to AWS [4] and Azure [5], respectively. Integration of blockchain within multi-cloud can be con- sidered an innovative approach in this regard for bridging such gaps. Security events, configuration changes, and access logs recorded using a decentralized ledger make an audit trail verifiable. This can be crucial for industries with demanding regulatory requirements on the accuracy of security event recordkeeping. Further, most blockchain platforms include the functionality to handle smart contracts in order to implement and enforce consistency in security policy compliance checks across different cloud service providers. A key part of this integration involves the use of real-world, available datasets for performance, scalability, and security enhancements. For instance, publicly available datasets such as anonymized security logs and compliance records from various cloud environments have been instrumental in bench- marking performance for blockchain-enabled security systems [6]. These datasets offer the best overview of how to efficiently deploy blockchain into detecting abnormal behavior, validation of user activities, and offering appropriate responses against a possible breach in real time. The use cases for the integration of blockchain with AWS and Azure have, amongst other limitations, interoperability challenges between blockchain networks, which are decentral- ized in nature, with their respective cloud-provided centrally managed systems. This requires a thoughtful design that al- lows seamless communication between blockchain nodes and cloud-based applications. The architectural framework must account for latency, scalability, and the dynamic nature of cloud workloads while ensuring that the blockchain’s security benefits are not compromised. Recent research has proposed hybrid architectures where blockchain acts as a security over- lay to existing cloud infrastructures, thereby combining the 1 2025 International Conference on Computing and Communication Technologies (ICCCT) 979-8-3315-3757-9/25/$31.00 ©2025 IEEE 2025 International Conference on Computing and Communication Technologies (ICCCT) | 979-8-3315-3757-9/25/$31.00 ©2025 IEEE | DOI: 10.1109/ICCCT63501.2025.11018983 Authorized licensed use limited to: Balkrishna Patil. Downloaded on July 13,2025 at 00:04:20 UTC from IEEE Xplore. Restrictions apply.