---

id: "CA-09" title: "Internal System Connections" family: "CA" family_name: "Assessment, Authorization, and Monitoring" sort_id: "ca-09" priority: "P1" implementation_level: "organization" enhancements: - ca-9.1

---

Authorize internal connections of {{ insert: param, ca-09_odp.01 }} to the system;

Document, for each internal connection, the interface characteristics, security and privacy requirements, and the nature of the information communicated;

Terminate internal system connections after {{ insert: param, ca-09_odp.02 }} ; and

Review {{ insert: param, ca-09_odp.03 }} the continued need for each internal connection.

Guidance

Internal system connections are connections between organizational systems and separate constituent system components (i.e., connections between components that are part of the same system) including components used for system development. Intra-system connections include connections with mobile devices, notebook and desktop computers, tablets, printers, copiers, facsimile machines, scanners, sensors, and servers. Instead of authorizing each internal system connection individually, organizations can authorize internal connections for a class of system components with common characteristics and/or configurations, including printers, scanners, and copiers with a specified processing, transmission, and storage capability or smart phones and tablets with a specific baseline configuration. The continued need for an internal system connection is reviewed from the perspective of whether it provides support for organizational missions or business functions.

Assessment Objective: internal connections of {{ insert: param, ca-09_odp.01 }} to the system are authorized;

Assessment Objective: for each internal connection, the interface characteristics are documented;

Assessment Objective: for each internal connection, the security requirements are documented;

Assessment Objective: for each internal connection, the privacy requirements are documented;

Assessment Objective: for each internal connection, the nature of the information communicated is documented;

Assessment Objective: internal system connections are terminated after {{ insert: param, ca-09_odp.02 }};

Assessment Objective: the continued need for each internal connection is reviewed {{ insert: param, ca-09_odp.03 }}.

Assessment, authorization, and monitoring policy

access control policy

procedures addressing system connections

system and communications protection policy

system design documentation

system configuration settings and associated documentation

list of components or classes of components authorized as internal system connections

assessment report

system audit records

system security plan

privacy plan

other relevant documents or records

Organizational personnel with responsibilities for developing, implementing, or authorizing internal system connections

organizational personnel with information security and privacy responsibilities

Mechanisms supporting internal system connections