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SI-4(7) SI · System and Information Integrity

Automated Response to Suspicious Events

LOW MODERATE HIGH
1 Overlay 0 Related Controls
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Requirements NIST SOURCE

Discussion (NIST Supplemental Guidance)

Least-disruptive actions include initiating requests for human responses.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for SI-4(7) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. incident response personnel (identified by name and/or by role) to be notified of detected suspicious events is/are defined;
  2. least-disruptive actions to terminate suspicious events are defined;
  3. <SI-04(07)_ODP[01] incident response personnel> are notified of detected suspicious events;
  4. <SI-04(07)_ODP[02] least-disruptive actions> are taken upon the detection of suspicious events.

Examine

[SELECT FROM: System and information integrity policy; system and information integrity procedures; procedures addressing system monitoring tools and techniques; system design documentation; system monitoring tools and techniques documentation; system configuration settings and associated documentation; alerts and notifications generated based on detected suspicious events; records of actions taken to terminate suspicious events; system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: System/network administrators; organizational personnel with information security responsibilities; system developers; organizational personnel installing, configuring, and/or maintaining the system; organizational personnel responsible for monitoring the system; organizational personnel responsible for the intrusion detection system].

Test

[SELECT FROM: Organizational processes for intrusion detection and system monitoring; mechanisms supporting and/or implementing intrusion detection and system monitoring capabilities; mechanisms supporting and/or implementing notifications to incident response personnel; mechanisms supporting and/or implementing actions to terminate suspicious events].

Overlays

Showing the OT/ICS overlay for the parent control SI-4 — see the SI-4(7) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

  • Base control: Included (matches standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)
  • Included: (2) (4) (5)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (2) (4) (5) (10) (12) (14) (20) (22)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for SI-4(7). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • System and information integrity policy
  • system security plan

Configuration

  • system design documentation
  • system configuration settings and associated documentation

Testing

  • Organizational processes for intrusion detection and system monitoring
  • mechanisms supporting and/or implementing intrusion detection and system monitoring capabilities
  • mechanisms supporting and/or implementing notifications to incident response personnel
  • mechanisms supporting and/or implementing actions to terminate suspicious events

Other Records

  • system and information integrity procedures
  • procedures addressing system monitoring tools and techniques
  • system monitoring tools and techniques documentation
  • alerts and notifications generated based on detected suspicious events
  • records of actions taken to terminate suspicious events
  • system audit records
  • other relevant documents or records