Dev Ops · n8n

Screen New Signups for Fraud Before Granting Access

Keep bad actors out — screen each new signup against risk signals like disposable emails and risky IPs, and hold suspicious ones for review.

difficulty Advancedsetup 40 minresult Fraudulent signups are caught at the door, protecting your platform and legitimate users.
  1. 1

    Capture the Signup

    Add a Webhook node receiving the new signup's email and IP.

  2. 2

    Check Risk Signals

    Add an HTTP Request to a fraud API returning risk scores for the email and IP.

  3. 3

    Decide the Outcome

    Add an IF node allowing low-risk signups and holding high-risk ones for review.

  4. 4

    Flag for Review

    Add a Slack node posting suspicious signups with their risk details.

  5. 5

    Activate and Test

    Activate the workflow and submit a disposable-email signup. Confirm it's held and flagged.

Frequently asked questions

Won't this block real users?

Hold, don't hard-block — a human reviews flagged signups so genuine users aren't wrongly rejected.

What signals matter most?

Disposable email domains, known-bad IPs and mismatched geolocation are strong early fraud indicators.

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