The difference is in the cloud In cloud computing, services can be procured from various types of clouds. Private Cloud Private clouds are not public; a company or organisation operates the cloud in their own data centre. Access is limited to authorised persons, for example business partners, customers and suppliers. Private clouds are considered the most secure type of cloud, because the operator has full control over the IT-operating environment.
Hybrid Cloud A hybrid cloud combines traditional IT with private and public clouds. In this type of cloud, the operator retains overall responsibility, but shares the responsibility for the individual IT elements. Secure access to the private cloud is ensured via a Virtual Private Network, while the public cloud is accessed via the Internet and the userâ&#x20AC;&#x2122;s web browser.
Public Cloud An external service provider supplies IT resources via the Internet, which results in multiple customers sharing the same infrastructure. All data and applications are stored physically on the same computers, but are separated logically. Users of services for public clouds do not have to purchase hardware, software or supporting infrastructure, as these are supplied and managed by the provider.