IA-2(10)—Single Sign-On
>Control Description
Provide a single sign-on capability for ⚙organization-defined system accounts and services.
>Cross-Framework Mappings
>Supplemental Guidance
Single sign-on enables users to log in once and gain access to multiple system resources. Organizations consider the operational efficiencies provided by single sign-on capabilities with the risk introduced by allowing access to multiple systems via a single authentication event. Single sign-on can present opportunities to improve system security, for example by providing the ability to add multi-factor authentication for applications and systems (existing and new) that may not be able to natively support multi-factor authentication.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of IA-2(10) (Single Sign-On)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring IA-2(10)?
- •How frequently is the IA-2(10) policy reviewed and updated, and what triggers policy changes?
- •What governance structure ensures IA-2(10) requirements are consistently applied across all systems?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce IA-2(10) requirements.
- •What automated tools, systems, or technologies are deployed to implement IA-2(10)?
- •How is IA-2(10) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce IA-2(10) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of IA-2(10)?
- •What audit logs, records, reports, or monitoring data validate IA-2(10) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of IA-2(10) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate IA-2(10) compliance?
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