Security Levels

Depending on how the object permissions are derived, there are different types of security levels for the object:

Class-level security: When the object permission derives from the class-level permission (from the class where the object belongs), the security level is set to class-level. This is the default if a secured object is created.
Group-level security: When a secured object is member of a security group where inheritance is enabled, the security level is set to group-level. Permissions derive from the group that the object is a member of (group-level permission).
Object-level security: When the user sets the object permission manually for a certain secured object, the security level is set to object-level (because the permissions are set individually for the object.)