Certificate of Cloud Security Knowledge (CCSK) Practice Test 2025 - Free CCSK Practice Questions and Study Guide

The data owner is responsible for protecting and securing the data in a cloud computing environment. This responsibility stems from the fact that the data owner is the individual or entity that has the legal rights and authority over the data. They determine how the data should be handled, who has access to it, and how it should be protected from threats.

Even when utilizing cloud services, the data owner must ensure that the data is appropriately secured according to its sensitivity and compliance requirements. The owner also works with other stakeholders, such as data custodians and cloud service providers, to implement the necessary security measures. While data custodians help manage the technical aspects and the cloud service provider is responsible for the security of the cloud infrastructure, ultimate accountability for data protection remains with the data owner, who must understand and mitigate risks associated with their data.

In contrast, the roles of data users and data custodians are more about operational management and access rather than overarching authority and accountability concerning data protection. The cloud service provider also plays a significant role in securing the environment but does so based on the configurations and policies set by the data owner. Thus, the responsibility for data security is primarily the purview of the data owner.