Understand ms-fluid_component in Microsoft Defender Advanced Hunting
Question details
The user is seeking to understand the meaning and origin of the ms-fluid_component value appearing under SourceApp in Microsoft Defender Advanced Hunting logs, specifically in relation to Microsoft Forms.
- Product
- Microsoft Defender / Microsoft Forms
- Device & OS
- not provided
- Scenario
- Reviewing Advanced Hunting results and identifying unfamiliar SourceApp values triggered by user-created Microsoft Forms.
- Observed behavior
- The Advanced Hunting logs display ms-fluid_component as the SourceApp for certain Microsoft Forms events, prompting a need for clarification on its meaning.
Gather your Advanced Hunting query, exact timestamps, tenant context, and sanitized event details before requesting technical support.
Consult the Microsoft Defender for Endpoint Community
Reach out to experts who specialize in Advanced Hunting results for immediate community-driven insights regarding SourceApp mapping.
Because SourceApp mappings and Microsoft Forms integrations are highly specific to Microsoft Defender, standard Office forums may not have the necessary expertise to interpret these logs. The dedicated Tech Community is the best place to get accurate explanations for ms-fluid_component.
Open your browser and visit the Microsoft Defender for Endpoint section on the Microsoft Tech Community website.
Click to create a new discussion. Include your Advanced Hunting query and the context where you observed the ms-fluid_component.
Ensure you remove any sensitive organizational data or personal information from the log snippets before posting.
Open a Service Request in the Microsoft 365 Admin Center
Escalate the issue directly to official Microsoft support if the community cannot identify the ms-fluid_component source.
Experience a Simpler, Secure Office Alternative
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- 1. Download the installer: Visit the official WPS Office website and download the free installer for your operating system.
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- 3. Start creating securely: Open WPS Office to create, edit, and secure your documents with built-in, easy-to-use privacy controls.
Frequently Asked Questions
What is a SourceApp in Microsoft Defender logs?
SourceApp is a field in Microsoft Defender Advanced Hunting logs that indicates the specific application, component, or service (such as ms-fluid_component) responsible for initiating a network connection or specific event.
Are Fluid components related to Microsoft Office?
Yes, Microsoft Fluid components are real-time collaborative modules used across Microsoft 365 applications, which can surface in backend logs when interacting with services like Microsoft Forms, Teams, and Outlook.
What details are required for a Defender support ticket?
When submitting a ticket via the Microsoft 365 admin center, always include the relevant Advanced Hunting query, exact timestamps, your tenant context, and sanitized event details to ensure faster resolution.
