---
title: Google Workspace user account signed out due to suspicious session cookie
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > OOTB Rules > Google Workspace user account signed
  out due to suspicious session cookie
---

# Google Workspace user account signed out due to suspicious session cookie

{% alert level="danger" %}
This rule is part of a beta feature. To learn more, [contact Support](https://docs.datadoghq.com/help/).
{% /alert %}
Classification:attackTactic:[TA0001-initial-access](https://attack.mitre.org/tactics/TA0001)Technique:[T1078-valid-accounts](https://attack.mitre.org/techniques/T1078) 
## Goal{% #goal %}

Detects Google Workspace login service events where Google terminates a session based on suspicious session cookie activity.

## Strategy{% #strategy %}

Monitoring of Google Workspace login audit telemetry for `user_signed_out_due_to_suspicious_session_cookie` on the login service, grouped by the affected mailbox in `@event.parameters.affected_email_address`. The signal originates from Google's session integrity detection rather than an administrator-initiated revoke.

## Triage and response{% #triage-and-response %}

- Contact the user at `{{@event.parameters.affected_email_address}}` to confirm whether they were using Google services at the event time and whether they observed unexpected devices or sign-out prompts.
- Review recent sign-in history, device registrations, and OAuth application access for that mailbox for unfamiliar locations, browsers, or mobile clients.
- Check neighboring security findings for the same account, including password resets, recovery changes, forwarding rules, or new third-party application grants.
- Determine whether travel, VPN use, or shared workstations could explain session anomalies before closing the review as expected behavior.