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AU-13—Monitoring For Information Disclosure

>Control Description

a

Monitor ⚙organization-defined open-source information and/or information sites ⚙organization-defined frequency for evidence of unauthorized disclosure of organizational information; and

b

If an information disclosure is discovered:

1.

Notify ⚙organization-defined personnel or roles; and

2.

Take the following additional actions: ⚙organization-defined additional actions.

>Control Enhancements(3)

AU-13(1)
AU-13(2)
AU-13(3)

>Cross-Framework Mappings

NIST CSF 2.0

via NIST CSF 2.0 Concept Crosswalk
DE.CM-03
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PR.DS-10
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SCF

MON-11
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>Supplemental Guidance

Unauthorized disclosure of information is a form of data leakage. Open-source information includes social networking sites and code-sharing platforms and repositories. Examples of organizational information include personally identifiable information retained by the organization or proprietary information generated by the organization.

>Related Controls

AC-22
PE-3
PM-12
RA-5
SC-7
SI-20

>Assessment Interview Topics

Questions assessors commonly ask

Process & Governance:

  • •What formal policies and procedures govern the implementation of AU-13 (Monitoring For Information Disclosure)?
  • •Who are the designated roles responsible for implementing, maintaining, and monitoring AU-13?
  • •How frequently is the AU-13 policy reviewed and updated, and what triggers policy changes?
  • •What training or awareness programs ensure personnel understand their responsibilities related to AU-13?

Technical Implementation:

  • •Describe the specific technical mechanisms or controls used to enforce AU-13 requirements.
  • •What automated tools, systems, or technologies are deployed to implement AU-13?
  • •How is AU-13 integrated into your system architecture and overall security posture?
  • •What configuration settings, parameters, or technical specifications enforce AU-13 requirements?

Evidence & Documentation:

  • •What documentation demonstrates the complete implementation of AU-13?
  • •What audit logs, records, reports, or monitoring data validate AU-13 compliance?
  • •Can you provide evidence of periodic reviews, assessments, or testing of AU-13 effectiveness?
  • •What artifacts would you present during a FedRAMP assessment to demonstrate AU-13 compliance?

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