The accessLabelAdapter client group corresponds to an advanced security feature called the Access Label Adapter (ALA). The ALA is a C or Java API program using a client on the system-defined accessLabelAdapter client group.

Access labels allow you to prevent a Broker client from accessing a specific document regardless of whether its client group is authorized to access the document type to which the document belongs.

The accessLabelAdapter client group has a destroy on disconnect lifecycle and a volatile storage type. You can modify the access control list (ACL) of the client group so that ALAs can authenticate using basic authentication or SSL; otherwise, you cannot modify the client group.

For more information, see Using Access Labels.