Hybrid clouds bring together a mix of private, on-premises, and public clouds to accomplish very specific organizational requirements. Such requirements typically cannot be met by any one of them alone. Usually, hybrid cloud-based systems are utilized when requirements are atypical and institutions are willing to tolerate the high costs associated with building and maintaining such systems. Public cloud systems, on the other hand, which can include applications such as Microsoft 365, Gmail, and One Drive, are hosted on public servers on an equal-availability basis. The choice between a public or hybrid cloud sometimes becomes difficult.