This document discusses cloud computing and cloud services. It defines cloud computing as putting resources and services in the cloud so companies do not have to own their own hardware. The main types of cloud services are Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Some major cloud providers are Amazon Web Services, Microsoft Azure, and Google Cloud. The document also covers security threats in cloud computing and important controls for cloud security including architecture, identity and access management, governance, and ensuring confidentiality, integrity and availability of data.