Which risk is controlled by implementing a private cloud?

Implementing a private cloud significantly enhances physical security by allowing an organization to control the physical environment in which its data and applications reside. In a private cloud setup, hardware and infrastructure are typically located on-premises or in a dedicated environment where the organization has oversight. This enables the organization to enforce stringent access controls, monitor the physical environment, and implement security measures like surveillance and personnel restrictions, which are more difficult to maintain in a public cloud scenario where physical access is shared among multiple tenants.

By ensuring that the infrastructure is managed in a secure location with limited access, organizations can better protect against risks related to unauthorized physical access, theft of equipment, and tampering. This control over physical security is crucial for compliance with regulatory requirements and for safeguarding sensitive data.

While the other options represent valid security concerns in cloud environments, they are not specifically mitigated by the establishment of a private cloud. For instance, eavesdropping and unauthorized access relate more to network and application-layer security measures rather than physical security. Similarly, denial-of-service (DoS) attacks pertain to network availability and require different security strategies, such as network traffic management and redundancy, to address. Therefore, the implementation of a private cloud is primarily focused on enhancing physical security.