You can check whether the cluster security group rules are safe or not in the Container Service console.
Log on to the Container Service console.
Click Clusters in the left-side navigation pane.
On the Cluster List page, click Manage at the right of a cluster.
Click Check Security Group. Then, the system checks the status of the cluster security group.
If the security group rules are normal, the Confirm Checking Security Group dialog box opens. Click Cancel.
If your security group rules contain risks, a dialog box opens, listing the security group rules with risks. Click Repair. Then, the system deletes security group rules with risks and creates new security group rules.