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IR-4

Incident Handling

Incident Response (IR)
Baselines
Low · IncludedModerate · IncludedHigh · Included
Description

Implement an incident handling capability for incidents that is consistent with the incident response plan and includes preparation, detection and analysis, containment, eradication, and recovery; Coordinate incident handling activities with contingency planning activities; Incorporate lessons learned from ongoing incident handling activities into incident response procedures, training, and testing, and implement the resulting changes accordingly; and Ensure the rigor, intensity, scope, and results of incident handling activities are comparable and predictable across the organization.

Discussion

Organizations recognize that incident response capabilities are dependent on the capabilities of organizational systems and the mission and business processes being supported by those systems. Organizations consider incident response as part of the definition, design, and development of mission and business processes and systems. Incident-related information can be obtained from a variety of sources, including audit monitoring, physical access monitoring, and network monitoring; user or administrator reports; and reported supply chain events. An effective incident handling capability includes coordination among many organizational entities (e.g., mission or business owners, system owners, authorizing officials, human resources offices, physical security offices, personnel security offices, legal departments, risk executive [function], operations personnel, procurement offices). Suspected security incidents include the receipt of suspicious email communications that can contain malicious code. Suspected supply chain incidents include the insertion of counterfeit hardware or malicious code into organizational systems or system components. For federal agencies, an incident that involves personally identifiable information is considered a breach. A breach results in unauthorized disclosure, the loss of control, unauthorized acquisition, compromise, or a similar occurrence where a person other than an authorized user accesses or potentially accesses personally identifiable information or an authorized user accesses or potentially accesses such information for other than authorized purposes.

Implementation guidance

No content available.

CSF 2.0 crosswalk
DE.AE-02Potentially adverse events are analyzed to better understand associated activitiesDetect
DE.AE-03Information is correlated from multiple sourcesDetect
DE.AE-06Information on adverse events is provided to authorized staff and toolsDetect
DE.AE-08Detect
ID.IM-01Improvements are identified from evaluationsIdentify
ID.IM-02Identify
ID.IM-03Improvements are identified from execution of operational processes, procedures, and activitiesIdentify
RC.CO-03Recovery activities and progress in restoring operational capabilities are communicated to designated internal and external stakeholdersRecover
RC.CO-04Recover
RC.RP-01The recovery portion of the incident response plan is executed once initiated from the incident response processRecover
RC.RP-02Recovery actions are selected, scoped, prioritized, and performedRecover
RC.RP-06The end of incident recovery is declared based on criteria, and incident-related documentation is completedRecover
RS.AN-03Analysis is performed to establish what has taken place during an incident and the root cause of the incidentRespond
RS.AN-06Actions performed during an investigation are recorded, and the records' integrity and provenance are preservedRespond
RS.AN-07Incident data and metadata are collected, and their integrity and provenance are preservedRespond
RS.AN-08An incident's magnitude is estimated and validatedRespond
RS.CO-02Internal and external stakeholders are notified of incidentsRespond
RS.CO-03Information is shared with designated internal and external stakeholdersRespond
RS.MA-02Incident reports are triaged and validatedRespond
RS.MA-03Incidents are categorized and prioritizedRespond
RS.MA-04Incidents are escalated or elevated as neededRespond
RS.MA-05The criteria for initiating incident recovery are appliedRespond
RS.MI-01Incidents are containedRespond
RS.MI-02Incidents are eradicatedRespond