You can add multiple security marks to a security group.
These marks can then be assigned to users and content to control which users can see which content.
For example, the predefined security group is Classification and contains the marks Top Secret, Secret, and Confidential. Only users assigned to the Top Secret mark can see files that have been marked as Top Secret.
You can set up additional security groups to match your company requirements, for example, security groups for nationality and job role.