Possible partner impersonation in external Team messages

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This query can be used as a Custom Detection Rule (CDR) to trigger when a partner email domain or email address is used in a Sender display name part of an inbound external Teams message

Attribute	Value
Type	Hunting Query
Solution	Microsoft Defender XDR
ID	f094e9f1-2d55-450d-af1a-0fdcd290f8c4
Tactics	DefenseEvasion
Techniques	T1562
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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