Which aspect is NOT a customer's security responsibility?

In a cloud computing environment, the shared responsibility model delineates the security obligations between the cloud service provider and the customer. Each aspect of security responsibility typically varies depending on the specific services being used.

Virtualization security is primarily the responsibility of the cloud service provider. This includes securing the underlying infrastructure that supports virtual machines, including hypervisors and the physical hardware. As a customer, you are typically not involved in the security of the virtualization layer itself, as this level of security management is abstracted away and handled by the service provider, like Alibaba Cloud.

In contrast, network security, VM security, and application security fall under the customer's domain. Customers are responsible for safeguarding their applications, managing access control, securing the operating systems of virtual machines, and configuring their network settings to ensure secure connectivity. Understanding this distinction is essential for ensuring comprehensive security within your cloud usage.