System-preferred MFA Enabled by Default in Microsoft 365
Microsoft enabled system-preferred MFA (multi-factor authentication() by default, choosing the most secure registered method,regardless of the default MFA method.
GA: System-preferred multifactor authentication - Microsoft
How to Set Up O365 Multi-Factor Authentication - Framework IT
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Multi-Factor Authentication for Microsoft Office 365 - Computing
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System-preferred multifactor authentication (MFA) - Microsoft
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