Private Clouds – emulate the concept of cloud computing on a private network. They allow users to have the benefits of cloud computing without some of the pitfalls. Private clouds grant complete control over how data is managed and what security measures are in place. This can lead to users having more confidence and control. The major issue with this deployment model is that the users have large expenditures as they have to buy the infrastructure to run the cloud and also have to manage the cloud themselves.