You can view security groups in the ECS console. To do so, follow these steps:

  1. Log on to the ECS console.
  2. In the left-side navigation pane, click Networks and Security > Security Groups.
  3. Select the target region. A list of all security groups in the specified region is displayed.
  4. Select the target VPC name or enter a VPC ID in the search box to search for security groups under a VPC.