# Source: https://docs.datadoghq.com/security/default_rules/154-6ed-00d.md

---
title: Brute force attack on an Auth0 user
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > Datadog Security > OOTB Rules > Brute force attack on an Auth0 user
---

# Brute force attack on an Auth0 user
Classification:attackTactic:[TA0006-credential-access](https://attack.mitre.org/tactics/TA0006)Technique:[T1110-brute-force](https://attack.mitre.org/techniques/T1110) 
## Goal{% #goal %}

Detect a brute force attack on a user.

## Strategy{% #strategy %}

**To determine a successful attempt:** Detect when the same user fails to login five times and then successfully logs in. This generates a `MEDIUM` severity signal.

**To determine an unsuccessful attempt:** Detect when the same user fails to login five times. This generates an `INFO` severity signal.

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

1. Inspect the logs to see if this was a valid login attempt.
1. See if 2FA was authenticated
1. If the user was compromised, rotate user credentials.