IA-12 (05)—Identity Proofing | Address Confirmation

Moderate

High

>Control Description

Require that a ☑registration code; notice of proofing be delivered through an out-of-band channel to verify the users address (physical or digital) of record.

>FedRAMP Baseline Requirements

Additional Requirements and Guidance

IA-12 (5) Additional FedRAMP Requirements and Guidance: Guidance: In accordance with NIST SP 800-63A Enrollment and Identity Proofing

>Discussion

To make it more difficult for adversaries to pose as legitimate users during the identity proofing process, organizations can use out-of-band methods to ensure that the individual associated with an address of record is the same individual that participated in the registration. Confirmation can take the form of a temporary enrollment code or a notice of proofing. The delivery address for these artifacts is obtained from records and not self-asserted by the user.

The address can include a physical or digital address. A home address is an example of a physical address. Email addresses and telephone numbers are examples of digital addresses.

>Assessment Interview Topics

Questions assessors commonly ask

Process & Governance:

•What formal policies and procedures govern the implementation of IA-12(5) (Address Confirmation)?
•Who are the designated roles responsible for implementing, maintaining, and monitoring IA-12(5)?
•How frequently is the IA-12(5) policy reviewed and updated, and what triggers policy changes?
•What governance structure ensures IA-12(5) requirements are consistently applied across all systems?

Technical Implementation:

•Describe the specific technical mechanisms or controls used to enforce IA-12(5) requirements.
•What automated tools, systems, or technologies are deployed to implement IA-12(5)?
•How is IA-12(5) integrated into your system architecture and overall security posture?
•What configuration settings, parameters, or technical specifications enforce IA-12(5) requirements?

Evidence & Documentation:

•What documentation demonstrates the complete implementation of IA-12(5)?
•What audit logs, records, reports, or monitoring data validate IA-12(5) compliance?
•Can you provide evidence of periodic reviews, assessments, or testing of IA-12(5) effectiveness?
•What artifacts would you present during a FedRAMP assessment to demonstrate IA-12(5) compliance?

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