Smartphone usage has been continuously growing in recent times. Smartphone's offer Personal Computer (PC) functionality to the end user, hence they are vulnerable to the same sorts of security threats as desktop computers. Cloud computing is a new computing paradigm and a breakthrough technology of recent times. Its growing popularity can be attributed to its ability to transform computing to a utility, scalability, and cost effectiveness. More and more services are predicted to be offered in the cloud in the near future. Due to the resource constraints of Smartphone, security services in the form of a cloud very scalable form in the cloud while off-loading the Smartphone.