Multi-cloud security focuses on safeguarding an organization’s crucial assets, such as private customer information and applications, against cyber-attacks in situations where multiple cloud services are involved. In a multi-cloud environment, a company uses more than one public cloud provider at the same time. This approach gives them the ability to select the best computing environment for each specific task. They can use a private cloud, a public cloud, or a combination of both, depending on their needs for each workload. The adoption of multi-cloud strategies has become increasingly common due to the benefits of agility, flexibility, and reduced vendor lock-in. However, managing security complexities remains crucial to fully benefit from multi-cloud economics. It is evident from the literature survey that data in multi-cloud need privacy and security. In this connection, recent strategies have proposed to extend the users an authority to approve their data for storage, sharing, and at the same time ensuring privacy, the paper presents the convergence of multi-cloud, blockchain and self-sovereign identity technique.