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A company is migrating its on-premises virtual machines to Azure using the Infrastructure as a Service (IaaS) model. According to the shared responsibility model, which security aspect remains the primary responsibility of the company?
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In the Infrastructure as a Service (IaaS) model, the customer is responsible for everything above the virtualization layer. This includes maintaining and securing the guest operating system (e.g., patching, configuration) and protecting their own application data within that operating system. The customer is always responsible for their customer data, regardless of the cloud service model.