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	GitHub Only
ID	b26c8461-8c9e-47ff-8b61-fe0f1fb8eea4
Tactics	InitialAccess
Techniques	T1566
Required Connectors	MicrosoftThreatProtection
Source	[View on GitHub](https://github.com/Azure/Azure-Sentinel/blob/master/Hunting Queries/Microsoft%20365%20Defender/Email%20and%20Collaboration%20Queries/Microsoft%20Teams%20protection/Microsoft%20Teams%20External%20versus%20Internal%20Thread%20Exposure.yaml)

Tables Used

This content item queries data from the following tables:

Table	Transformations	Ingestion API	Lake-Only
MessageEvents	✓	✗	✓

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