Many companies are new to the cloud computing environment. How do you brief them about what security aspects come with a cloud?

"Cloud environments can be as secure as computing environments hosted on-premise based on two key attributes. These are Authentication and authorization, and Control of access. Authentication allows only those users who are authorized to access the resources hosted in the cloud. These include data, applications, and storage. Control of access is a system administrator tool which enables them to allow or deny access to specific users. Together, these tools provide a safe and secure cloud environment."