A cloud-based storage architecture provides for the isolation of client data in a distributed manner using a hub-and-spoke account mechanism within the cloud. Individual client data is securely isolated while still providing a master account with access to all data, including providing access from common applications to all of the data. Thus complete client isolation is achieved while simultaneously sharing the code necessary to process the data in the cloud. A separate client account may be maintained for data stored at separate physical locations, such as may be required under various privacy laws and regulations; in this manner, no data is required to leave a specified geopolitical location in order for processing to occur.