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

# Authentication

> Set up Single Sign-On with your identity provider, or use passwords with multi-factor authentication.

StackOne can be set up to let users sign in with Single Sign-On or with a password and MFA.

<CardGroup cols={2}>
  <Card title="Single Sign-On" icon="key" href="/secure/identity-and-access/authentication/sso/overview">
    Connect your SAML identity provider and verify your domain so users sign in through your IdP.
  </Card>

  <Card title="Passwords and MFA" icon="lock" href="/secure/identity-and-access/authentication/passwords-and-mfa">
    Change your password and turn on MFA.
  </Card>
</CardGroup>