# Authentication {% hint style="warning" %} Note that you'll only see this section if you have Owner user permissions. Learn more about permissions in [this article](/administration/global-settings/tenant/users.md). {% endhint %} The default authentication method to access your Tenants in Onum is a combination of email + password. However, admin users can activate the following extra authentication methods: * [Two-factor authentication](/administration/global-settings/tenant/authentication/two-factor-authentication.md) - Add an extra layer of security by requiring users to provide additional verification beyond just their credentials. * [Single Sign-On (SSO) with SAML](/administration/global-settings/tenant/authentication/single-sign-on-sso-with-saml.md) - Simplify user authentication using SAML. Users will be redirected to their identity provider to verify their identity, without needing a separate username and password. * [Single Sign-On (SSO) with OpenID](/administration/global-settings/tenant/authentication/single-sign-on-sso-with-openid.md) - Simplify user authentication using OpenID Connect. Users will be redirected to their identity provider to verify their identity, without needing a separate username and password. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.onum.com/administration/global-settings/tenant/authentication.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.