1Password - Successful anomalous sign-in
This will alert when a new successful MFA confirmed sign-in has occurred from a location that was not seen within the last 14 days. Ref: https://1password.com/ Ref: https://github.com/securehats/
Detection logic
Detection requirements
- Platform
- ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source product
- 1password
- Log source service
- onepasswordeventlogs_cl
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
No references are available for this detection.
From the source
- At source
- Open at source
- Upstream identifier
- ceb20a5c-adce-4eba-9728-541361d47d87
- Tagged by the source as
- InitialAccess
Licence
- Published under
- MIT LicenseRead the licence
- Attribution
- Required
- Obtained under
- MITRead the origin licence
Authorship
- Published
- Aug 29, 2026
- Version
- 1