Office 365 Impossible Travel

Alert Overview: This alert triggers when a user account is successfully accessed from geographically distant locations within an impossible time frame, indicating potential account compromise.

Step 1: Initial Dashboard Review

1. Navigate to the default "Security Detections" dashboard in your ThreatDefence Analyst Console.

2. Locate the "Impossible Travel" alert in the table to the left and click on the filter to select it:

The dashboard will refresh, only showing you the selected alert. Review impacted users, indicators, techniques for quick awareness. Select(filter) one user if you wish to investigate one user only.

1. Do an initial review:

   1. review the td.alert.message which contains a summary of the detection:

   

   1. expand the alert using the > in the left side and inspect the available fields in the detection feed: logon locations, user agent, username, ISP to determine the event outcome.