Cloud computing (CC) allows obtaining computing resources on-demand and also allows storing avalanche of data with a high fault tolerance level. Security is extremely vital when storing an avalanche of data on the cloud for resolving a number of issues. Though several existing works were there to store data on the cloud, still there are some problems that the data owner has to suffer, such as lack of confidentiality, time delay in storing, and also data being attacked because of insider troubles. Thus, this paper strives to strengthen the sensitive Data Confidentiality (DC) in private as well as public cloud storage by proposing a new data portability and access policy scheme to resolve these afore-mentioned problems. A novel algorithm termed Sandpiper Genetic Algorithm (SP-GA) is launched to maintain proper portability between the cloud-severs. Then, Length Caesar Cipher based Access Policy (LCC-AP) technique is utilized to achieve DC. The proposed techniques guarantee DC, support portability, and also provide secured sharing of files among users. Experimental outcomes show the potential efficiency of SP-GA and LCC-AP