Four legacy override alerts in Microsoft Defender for Office 365 will be retired in August 2024 due to redundancy from the Secure by default feature. Affected users with specific subscriptions will not need to take any action as this change will occur automatically.
MC822720 – Updated August 28, 2024: Microsoft has updated the rollout timeline and content below. Thank you for your patience.
Microsoft Defender for Office 365 is retiring four legacy override alerts that are now mostly redundant due to Secure by default. With Secure by default, ZAP (zero-hour auto purge) blocks high confidence phishing emails by default despite the legacy overrides. The four alerts are:
As part of the deprecation and rollout,
When is the change?
Microsoft plans to turn off these alerts starting August 18, 2024 and ending September 15, 2024.
Who is impacted?
What should I do if I am impacted?
This change will happen automatically by the specified date. No admin action is required. Since these alerts are mostly redundant, Microsoft does not expect any impact.
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