MC1215070 | Microsoft 365 admin center multifactor authentication enforcement

Service

Microsoft 365 suite

Last Updated

2026-01-08T01:19:45.83Z

Published

2026-01-08T00:50:22Z

Message ID

MC1215070

If you have already set up multi-factor authentication, thank you. No further action is needed at this time. If you have not, please read on. As part of our ongoing commitment to advancing cybersecurity across our company and products, last year, starting February 2025, Microsoft began requiring all users to use multi-factor authentication (MFA) when signing into the Microsoft 365 admin center. Starting February 9th 2026, Microsoft will continue to ramp up enforcement, and users will be unable to sign in to the Microsoft 365 admin center without successfully completing MFA. Implementing MFA in the Microsoft 365 admin center significantly reduces the risk of account compromise, prevents unaut...

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