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SI-4 (11)

System and Information IntegrityRev 5organization

System Monitoring

Control Statement

Analyze outbound communications traffic at the external interfaces to the system and selected [Assignment: interior points] to discover anomalies.

Supplemental Guidance

Organization-defined interior points include subnetworks and subsystems. Anomalies within organizational systems include large file transfers, long-time persistent connections, attempts to access information from unexpected locations, the use of unusual protocols and ports, the use of unmonitored network protocols (e.g., IPv6 usage during IPv4 transition), and attempted communications with suspected malicious external addresses.

CCI Identifiers (3)

CCI-001671Analyze outbound communications traffic at selected organization-defined interior points within the system to discover anomalies.CCI-001273Analyze outbound communications traffic at the external interfaces to the system to discover anomalies.CCI-002668Defines the interior points within the system where outbound communications will be analyzed to discover anomalies.

Linked STIG Checks (4)

Across 1 STIGs. Click to expand.