You can delete a user-defined security group.
1. Open the Security Services.
- Navigate to Networking > Security.
- Select the organization VDC for which you want to apply security settings, and click Configure Services.
- The tenant portal opens Security Services.
2. Navigate to Grouping Objects > Security Groups
The Security Groups page opens.
3. Select the security group you want to delete.
4. Click the Delete button.
5. To confirm the deletion, click OK.