> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gr4vy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Anti-fraud setup

> Setting up an anti-fraud service

To enable anti-fraud you first need to create a new anti-fraud connection
which can be completed via the dashboard by heading to **Connections** -> **Catalog**.

On this page, scroll down to the bottom to explore the available anti-fraud services.

<Info>
  For detailed setup instructions for each anti-fraud provider, visit the appropriate connector page:

  * [Cybersource](/connections/anti-fraud/cybersource)
  * [Forter](/connections/anti-fraud/forter)
  * [Riskified](/connections/anti-fraud/riskified)
  * [Sardine](/connections/anti-fraud/sardine)
  * [Sift](/connections/anti-fraud/sift)
</Info>

<img src="https://mintcdn.com/gr4vy/jCFeFdffXM43huI0/assets/images/anti-fraud/connections.png?fit=max&auto=format&n=jCFeFdffXM43huI0&q=85&s=72036dd10eb2f0cdad249b227266e3ae" alt="Anti-fraud connections" width="3232" height="2254" data-path="assets/images/anti-fraud/connections.png" />

To enable your chosen anti-fraud connection:

1. Provide the required credentials and other details to configure the connection.
2. Set the [connection mode](/guides/features/anti-fraud/overview#connection-mode) to Primary.
3. Create a new [card transactions](/guides/dashboard/flow/card-transactions) flow rule
   with an anti-fraud decision as its condition.

## Multiple anti-fraud services

You can configure multiple anti-fraud services on the same merchant account. Exactly one service can be in **Primary** [connection mode](/guides/features/anti-fraud/overview#connection-mode) at a time, and its decisions drive your Flow rules. Any number of additional services can run in **[Silent](/guides/features/anti-fraud/silent-mode)** mode alongside the Primary. Whenever a Flow rule triggers an anti-fraud check, Silent services are evaluated alongside the Primary and produce decisions that are logged but not enforced.

This makes it straightforward to evaluate a new service against real traffic and migrate to it without disruption. See [Silent mode](/guides/features/anti-fraud/silent-mode) for the full migration playbook.