Number matching が強制される

[watahani]

追記したほうが良いように思う

https://learn.microsoft.com/en-us/azure/active-directory/authentication/how-to-mfa-number-match

When will my tenant see number matching if I don't use the Azure portal or Graph API to roll out the change?
Number match will be enabled for all users of Microsoft Authenticator after February 27, 2023. Relevant services will begin deploying these changes after February 27, 2023 and users will start to see number match in approval requests. As services deploy, some may see number match while others don't. To ensure consistent behavior for all your users, we highly recommend you use the Azure portal or Graph API to roll out number match for all Microsoft Authenticator users.

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Document Details

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• ID: b4234ca8-4571-5a4d-b83e-3c09243abee0
• 対象記事: Microsoft Authenticator の MFA 疲労攻撃対策
• Content Source: articles/azure-active-directory/defend-your-users-from-mfa-fatigue-attacks.md
• Author: