AC-10—Concurrent Session Control
High
>Control Description
Limit the number of concurrent sessions for each ⚙organization-defined account and/or account type to ⚙organization-defined number.
>FedRAMP Baseline Requirements
No FedRAMP-specific parameter values or requirements for this baseline.
>Discussion
Organizations may define the maximum number of concurrent sessions for system accounts globally, by account type, by account, or any combination thereof. For example, organizations may limit the number of concurrent sessions for system administrators or other individuals working in particularly sensitive domains or mission-critical applications. Concurrent session control addresses concurrent sessions for system accounts.
It does not, however, address concurrent sessions by single users via multiple system accounts.
>Cross-Framework Mappings
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of AC-10 (Concurrent Session Control)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring AC-10?
- •How frequently is the AC-10 policy reviewed and updated, and what triggers policy changes?
- •What training or awareness programs ensure personnel understand their responsibilities related to AC-10?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce AC-10 requirements.
- •What automated tools, systems, or technologies are deployed to implement AC-10?
- •How is AC-10 integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce AC-10 requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of AC-10?
- •What audit logs, records, reports, or monitoring data validate AC-10 compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of AC-10 effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate AC-10 compliance?
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