Impossible travel event observed from 1Password user
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언제든지 연락주시기 바랍니다.Goal
Detect an Impossible Travel event from a 1Password user.
Strategy
The Impossible Travel detection type’s algorithm compares the GeoIP data of the last log and the current log to determine if the user (@usr.email) traveled more than 500km at over 1,000km/h.
Triage and response
- Determine if
{{@usr.email}} should be connecting from {{@impossible_travel.triggering_locations.first_location.city}},{{@impossible_travel.triggering_locations.first_location.country}} and {{@impossible_travel.triggering_locations.second_location.city}}, {{@impossible_travel.triggering_locations.second_location.country}} in a short period of time. - If the user should not be connecting from
{{@impossible_travel.triggering_locations.first_location.city}}, {{@impossible_travel.triggering_locations.first_location.country}} or {{@impossible_travel.triggering_locations.second_location.city}}, {{@impossible_travel.triggering_locations.second_location.country}}, then consider isolating the account and resetting their credentials. - Use the Cloud SIEM - User Investigation dashboard to audit any user actions that may have occurred after the illegitimate login.
Changelog
- 15 September 2025 - Excluded logins from corporate VPNs and 1Password service accounts to reduce false positives.
