Introduction to Cloud Computing,Adopting the Cloud, Exploiting Software as a Service ( SaaS ), Delivering Platform as a Service (PaaS), Deploying Infrastructure as a Service ( IaaS ), Building a Business Case & Migrating to the Cloud. Cloud computing models, look into the threat model and security issues related to data and computation outsourcing, and explore practical applications of secure cloud computing. Using the confidentiality, integrity, and availability of data (CIA) model we will examine the threats and security implications to befall poorly established and maintained cloud computing environment.