---
title: Auth0 user logged in with a breached password
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > OOTB Rules > Auth0 user logged in with a breached
  password
---

# Auth0 user logged in with a breached password
Classification:attackTactic:[TA0001-initial-access](https://attack.mitre.org/tactics/TA0001)Technique:[T1078-valid-accounts](https://attack.mitre.org/techniques/T1078) 
## Goal{% #goal %}

Detect when a user logs in with a breached password.

## Strategy{% #strategy %}

Auth0 logs an event when a user logs in with a breached password. When this event is detected, Datadog generates a `MEDIUM` severity Security Signal.

You can see more information on how Auth0 detects breached passwords on their [documentation](https://auth0.com/docs/anomaly-detection/brute-force-protection).

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

1. Inspect the policy and user location to see if this was a login from approved location
1. See if 2FA was authenticated
1. If the user was compromised, rotate user credentials.