title: Unfamiliar Sign-In Properties
id: 128faeef-79dd-44ca-b43c-a9e236a60f49
status: test
description: Detects sign-in with properties that are unfamiliar to the user. The detection considers past sign-in history to look for anomalous sign-ins.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#unfamiliar-sign-in-properties
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'unfamiliarFeatures'
condition: selection
falsepositives:
- User changing to a new device, location, browser, etc.
level: high