# 60412: Verification blocked by Fraudulent Signup Prevention

Log Type: APPLICATION

Log Level: ERROR

## Description

Based on your service configuration, Twilio Verify has blocked this request because it was identified as a possible fraudulent signup attempt.

To prevent platform abuse and unnecessary costs, the verification attempt was terminated before the message was sent.

### Causes

* The request was identified as a high-risk attempt to create a fake or duplicate account.
* You have not added a legitimate number to the Verify Safelist.

### Possible solutions

* **Update your Safelist**: Add the phone number to your [Verify Safelist](/docs/verify/api/safe-list). This prevents active filters from blocking this specific phone number.
* **Override it using the `risk_check` parameter**: If you're sure that this authentication is legitimate and safe, you can bypass the block by including the `risk_check=disable` parameter in your API request.
  * Note: Disabling risk checks increases your exposure to SMS pumping and fake account creation.
* **Adjust Fraudulent Signup Prevention Setting**: While the feature is in pilot, contact your account manager or reach out to support to adjust the prevention mode.