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AWS singlesignon documentation change

Service: singlesignon · 2025-10-25 · Documentation medium

File: singlesignon/latest/userguide/user-device-registration.md

Summary

Added MFA support limitations note and restructured content

Security assessment

Clarified MFA implementation constraints and device registration process, enhancing security documentation without addressing specific vulnerabilities.

Diff

diff --git a/singlesignon/latest/userguide/user-device-registration.md b/singlesignon/latest/userguide/user-device-registration.md
index 3bdfa95c5..80d587500 100644
--- a//singlesignon/latest/userguide/user-device-registration.md
+++ b//singlesignon/latest/userguide/user-device-registration.md
@@ -4,0 +5,2 @@
+Before you beginRegister your device
+
@@ -7 +9 @@
-Use the following procedure within the AWS access portal to register your new device for multi-factor authentication (MFA).
+For users in the Identity Center directory, use the following procedure within the AWS access portal to register your new device for multi-factor authentication (MFA).
@@ -9 +11,5 @@ Use the following procedure within the AWS access portal to register your new de
-###### Note
+###### Important
+
+MFA in IAM Identity Center is currently not supported for [external identity providers](https://docs.aws.amazon.com/singlesignon/latest/userguide/manage-your-identity-source-idp.html).
+
+## Before you begin
@@ -12,0 +19,2 @@ We recommend that you first download the appropriate Authenticator app onto your
+## Register your device
+