M365 Changelog: (Updated) Microsoft Defender for Office 365: Migration of quarantine notification frequencies

MC468486 – Updated February 14, 2023: Microsoft has updated the content below for clarity. Thank you for your patience.

This communication is an extension of the previous communication in MC383901

Microsoft is updating the frequency interval available for user quarantine notification.

This message is associated with Microsoft 365 Roadmap ID 93304

When this will happen:

Standard: will begin rolling out in late November and be completed by late February 2023

Government: will begin rolling out in early June 2023 and be completed by late July 2023

How this will affect your organization:

Currently, these are the frequency interval available for user quarantine notification for Admins to choose from:

• Within 1 day
• Within 2 days
• Within 3 days – current default
• Within 4 days
• Within 5 days
• Within 6 days
• Within 7 days
• Within 9 days
• Within 10 days
• Within 11 days
• Within 12 days
• Within 13 days
• Within 14 days
• Within 15 days

With this change, these will be the new intervals:

• Within 4 hours
• “daily” – new default
• “Weekly”

For customers that currently have notification frequencies > 1 day and < 7days, Microsoft will migrate to 1 day (i.e daily) 

For customers that currently have notification frequencies > 7 days, Microsoft will migrate to 7 days (i.e weekly)

 What you need to do to prepare:

Admins should update their quarantine global policy configuration frequency as they see fit and training documentation

Additional information

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