Systematic Literature Review of Multi-Cloud Aspects

This paper conducts a systematic literature review of 20 studies in multi-cloud, focusing on the areas of security issue trends, multi-cloud advantages, multi-cloud challenges and future research directions of multi-cloud. The results show that the majority of multi-cloud security issue trends are in the service availability and authentication and authorization categories, followed by data storage, cryptography, confidential computing, virtualization, and data sanitization categories. In addition, there are other results related to the discussion of the advantages, challenges and future research directions of multi-cloud. By understanding the security issue trends, advantages, challenges and future research directions, the implementation of multi-cloud adoption can be optimized to in various aspects.