An organization migrated most of its physical servers to virtual ones in its own data center.
Which of the following should be of GREATEST concern to an IS auditor reviewing the virtual environment?
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A. B. C. D.D.
As an IS auditor reviewing a virtual environment, the GREATEST concern should be given to the security of the environment. Therefore, option A, B, and D are important concerns, but option C is of the GREATEST concern, as it deals with the security of the hypervisor, which is the backbone of the virtual environment.
A hypervisor is a software layer that allows multiple virtual machines to run on a single physical host. The hypervisor is responsible for managing the hardware resources and ensuring that each virtual machine has its own isolated environment. The hypervisor also provides access controls, which allow administrators to control who can access the virtual machines and what they can do with them.
If the hypervisors have not been updated with the most recent patches, it means that they could be vulnerable to security exploits that have already been discovered and fixed by the vendor. Attackers could exploit these vulnerabilities to gain access to the hypervisor and the virtual machines running on it. Once they have access to the hypervisor, they can easily compromise the security of the entire virtual environment.
Therefore, an IS auditor reviewing the virtual environment should ensure that the hypervisors are updated with the latest patches and that access controls are properly configured to prevent unauthorized access. Additionally, the auditor should also ensure that the other concerns mentioned in the options, such as outdated access control lists, incomplete configuration management database, and unapproved virtual machine deployments, are also addressed to ensure the overall security and reliability of the virtual environment.