Microsoft Teams External versus Internal Thread Exposure

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This query shows de-duplicated Microsoft Teams messages split by whether the thread includes external participants.

Attribute	Value
Type	Hunting Query
Solution	Microsoft Defender XDR
ID	9ddbd09d-6119-4e78-bf15-911c4113d608
Tactics	InitialAccess
Techniques	T1566
Required Connectors	MicrosoftThreatProtection
Source	View on GitHub

Tables Used

This content item queries data from the following tables:

Table	Transformations	Ingestion API	Lake-Only
MessageEvents	✓	✗	✓

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