Message Center Major Change Update Notification

Announcing automatic redirection from Office 365 Security and Compliance Center to Microsoft 365 Defender portal
We will soon begin redirecting users from the legacy Office 365 Security and Compliance center ( to Microsoft 365 Defender portal (, for all security workflows including: Alerts, Threat Management and Reports.

Items in the Office 365 Security and Compliance center that are not related to security will not be redirected to Microsoft 365 Defender. For compliance solutions redirection to Microsoft 365 Compliance Center, see (March 2021, MC244886).

This is a continuation of our migration of the security workflows to the Microsoft 365 Defender portal, which we started in March 2021.

For customers who have already enabled automatic redirection, as part of the previous communication when announcing the New Home for Microsoft Defender for Office 365, automatic redirection will now include alerts and alert policies redirection, in addition to all previously redirected features. As before, customers will still be able to turn off automatic redirection.

Please refer to the redirection support documentation here for additional details.

Key points

  • Microsoft 365 Roadmap ID 82107
  • Timing: Rollout will begin in mid-September and is expected to be complete by late October.
  • Roll-out: tenant level
  • Control type: admin control
  • Action: review and assess

How this will affect your organization:

Users accessing the security solutions in the Office 365 Security and Compliance center ( will be automatically redirected to the appropriate solutions in the Microsoft 365 Defender ( This change enables users to view and manage additional Microsoft 365 Defender security solutions in one portal.

What you need to do to prepare:

Redirection is enabled by default, and impacts all users of the tenant.

Global Administrators and Security Administrators can turn off redirection in the Microsoft 365 Defender portal by navigating to Settings > Email & collaboration > Portal redirection and switch the redirection toggle.

Additional Information
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