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IA-4(5)—Dynamic Management

>Control Description

Manage individual identifiers dynamically in accordance with ⚙organization-defined dynamic identifier policy.

>Cross-Framework Mappings

SCF

IAC-09.3
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>Supplemental Guidance

In contrast to conventional approaches to identification that presume static accounts for preregistered users, many distributed systems establish identifiers at runtime for entities that were previously unknown. When identifiers are established at runtime for previously unknown entities, organizations can anticipate and provision for the dynamic establishment of identifiers. Pre-established trust relationships and mechanisms with appropriate authorities to validate credentials and related identifiers are essential.

>Related Controls

AC-16

>Assessment Interview Topics

Questions assessors commonly ask

Process & Governance:

  • •What formal policies and procedures govern the implementation of IA-4(5) (Dynamic Management)?
  • •Who are the designated roles responsible for implementing, maintaining, and monitoring IA-4(5)?
  • •How frequently is the IA-4(5) policy reviewed and updated, and what triggers policy changes?
  • •What governance structure ensures IA-4(5) requirements are consistently applied across all systems?

Technical Implementation:

  • •Describe the specific technical mechanisms or controls used to enforce IA-4(5) requirements.
  • •What automated tools, systems, or technologies are deployed to implement IA-4(5)?
  • •How is IA-4(5) integrated into your system architecture and overall security posture?
  • •What configuration settings, parameters, or technical specifications enforce IA-4(5) requirements?

Evidence & Documentation:

  • •What documentation demonstrates the complete implementation of IA-4(5)?
  • •What audit logs, records, reports, or monitoring data validate IA-4(5) compliance?
  • •Can you provide evidence of periodic reviews, assessments, or testing of IA-4(5) effectiveness?
  • •What artifacts would you present during a FedRAMP assessment to demonstrate IA-4(5) compliance?

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