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MC406230: Microsoft Defender for Office 365: Update to Quarantine retention period for Malware detections

Given feedback from our customer on the need for an additional time to triage the emails or files that were quarantined as result of potential malware we are increasing the retention period from 15 days to 30 days.

MC406230: Microsoft Defender for Office 365: Update to Quarantine retention period for Malware detections

When this will happen

  • Standard Release: will begin rolling this out by end of July and expect to complete by late August.
  • Government: will begin rolling out by mid-August and expect to be complete by mid-September.

How this will affect your organization

Previously Admins had to triage quarantined malware emails and files within a 15-day period before they expired from quarantine, however with this change Admins have 30 days to triage before expiration happens

What you need to do to prepare

You may consider updating your training and documentation as appropriate.

Learn more

Message ID: MC406230
Published: 27 July 2022
Updated: 27 July 2022

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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