In Huawei FusionCompute, which statement about security groups is inaccurate?

In the context of Huawei FusionCompute, the assertion regarding security groups that is inaccurate is that changes to security group rules need to be manually applied to virtual machines within the security group. In reality, any changes made to the rules of a security group automatically apply to all virtual machines that are part of that group. This design allows for efficient management of network policies and ensures that all virtual machines inherit the security settings without the need for individual adjustments.

The other statements reflect accurate information about security groups in Huawei FusionCompute. A security group does indeed need to be created before any rules can be added, as the rules must pertain to an existing group. Furthermore, the default behavior of a security group is to deny all traffic until specific rules are defined to allow traffic, which adheres to a common security principle of least privilege. Lastly, a security group can only be deleted when there are no virtual machines associated with it, ensuring that the resources are properly managed and maintained within the cloud environment.