You will need to compare public/private/hybrid cloud in terms of the security and management layers that your business requires.
A public cloud is based on the standard cloud computing model, which is available over a public network and is shared with other clients on the same platform. A public cloud is accessed over the internet and is generally used by businesses without confidential information to store and access.
Public clouds can typically be deployed a lot faster than other clouds, however they have less security measures in place and are therefore mostly lower in cost. A public cloud would be suitable in the following environments – e-mail, testing or developing application code, basic website.
Private clouds are for the sole use of the individual client. Private clouds provide what public clouds lack, so are usually employed by businesses who require a greater level of security for their data. Private clouds are accessed over the internet securely or via a private network and are protected by a firewall.
With private clouds you have complete control over your own data and applications. A private cloud would be great if your business needs to adhere to security and data protection standards.
Hybrid clouds are integrated cloud services, combining elements of private and public clouds. Hybrid cloud draws services and data from a variety of cloud models into a productive, automated computing environment. Businesses tend to keep some data in the public cloud, and put more high-risk elements in a private cloud environment.
A hybrid cloud would be useful for different types of users or data, or if you want to run Software as a Service (SaaS) but are concerned about data security.