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

# 3D Secure Overview

> Learn about how the Three Domain Secure (3D Secure) security protocol on the Marqeta platform can protect your cardholders from fraudulent transactions.

Learn about how the Three Domain Secure (3D Secure) security protocol on the Marqeta platform can protect your cardholders from fraudulent transactions.

<h2 id="_3ds_documentation_and_resources">
  3DS documentation and resources
</h2>

<Columns cols={3}>
  <Card title="About 3D Secure" href="/developer-guides/about-3d-secure/">
    3D Secure adds a verification step to protect against fraudulent card transactions.
  </Card>

  <Card title="3D Secure" href="/core-api/3ds/">
    See reference documentation for the 3D Secure API.
  </Card>

  <Card title="3D Secure Setup" href="/developer-guides/3ds-setup/">
    Learn to configure 3D Secure 2 with Marqeta and the card networks.
  </Card>
</Columns>