As a multi-tenant cloud environment, the public cloud offers companies with vast amounts of data a highly affordable option. However, it also presents a number of limitations including reliability challenges, a lack of control and transparency, and information security issues. The public cloud is not suitable to support legacy applications that require a highly stable infrastructure. Hybrid cloud architecture offers companies greater control over and access to their IT environments and the ability to implement more stringent security protocols on the private cloud portion of their deployment. The best defense for a cyberattack is a powerful cryptographic tool in powerful cryptographic tools.
Source: https://www.helpnetsecurity.com/2021/05/14/hybrid-cloud-colocation/