503108 – Microsoft Defender for Office 365: Automated Investigation & Response (AIR) Platform Modernization – User Submission Playbook

Product:

Defender, Defender for Office 365, Microsoft 365 Defender

Platform:

US Instances, Web, World tenant

Status:

Rolling out

Change type:

Links:

(MC1165053)

Details:

We are modernizing the AIR platform for increased scalability and speed of AIR investigations to deliver the user submission playbook faster including quicker verdicts and faster resolutions.

Change Category:
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Scope:
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Release Phase:
General Availability

Created:
2025-09-12

updated:
2025-10-08

Docu to Check

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MS workload name

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summary for non-techies**

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Direct effects for Operations**

Please, look at the most relevant linked item for details

explanation for non-techies**

Imagine you have a team of detectives working on solving cases. Traditionally, they would gather evidence, analyze it, and then come to a conclusion. This process can take time, especially if the evidence is scattered and the team is small. Now, think of Microsoft Defender for Office 365 as a detective team that has just received a major upgrade.

This upgrade is like giving the detectives new tools and resources that allow them to work faster and more efficiently. Instead of sifting through piles of evidence manually, they now have a high-tech system that can quickly gather and analyze data, leading to faster conclusions. This means that when someone reports a suspicious email or potential threat, the system can investigate and respond much more quickly than before.

For lawyers, managers, or HR staff, this means that the security of your digital environment is being enhanced. Just like how a faster detective team can solve cases more quickly, the modernized platform can address potential security threats more swiftly. This reduces the time it takes to resolve issues, providing peace of mind that your organization is protected against threats more effectively.

In simple terms, the modernization of the Automated Investigation & Response (AIR) platform in Microsoft Defender for Office 365 is about making the process of identifying and resolving security threats faster and more efficient, much like upgrading a detective team with the latest technology to solve cases more quickly.