To create a security group:
- Click Settings .
- Click Users in the Users and Security area.
- Click Users, then click New Security Group. Alternatively, click New Security Group in the right panel. …
- Enter the basic information for the security group: Type the name of the group into the Name field. …
- Click Save.
For More Information Please Refer: https://docs.oracle.com/en/cloud/saas/marketing/eloqua-user/Help/SecurityGroups/Tasks/CreatingSecurityGroups.htm