There is vast demand of cloud computing are increases in the today's era because of the on demand service of cloud computing. The authors' main direction is to make data communication better in the cloud environment. It means secure communication will be provided for preventing unauthorized access. They proposed an efficient approach by using RC4 mechanism to support encrypted data transmission in cloud environment. They also test their results based on the software measures like F-Measure (FM), Odd Ratio (OR) and POwer (PO) which emphasize on the effectiveness of their approach.