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HighSigmaHQ Mark Morowczynski '@markmorow' +2

Impossible Travel

Identifies user activities originating from geographically distant locations within a time period shorter than the time it takes to travel from the first location to the second.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Network Devices Office Suite SaaS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: azure
Log source service: riskdetection

Known benign triggers

Connecting to a VPN, performing activity and then dropping and performing additional activity.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins	Product documentation	19
learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#impossible-travel	Product documentation	22from 2 sources

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