--- sidebar_navigation: title: Two-factor authentication priority: 700 description: configure two-factor authentication for OpenProject. robots: index, follow keywords: two-factor authentication --- # Two-factor authentication (Premium feature) To activate and **configure two-factor authentication** for OpenProject, navigate to -> *Administration* -> *Authentication* and choose -> *two-factor authentication*. You can configure the following options: 1. **Enforce two-factor authentication (2FA) for the whole system**. All users will be forced to [register a 2FA device](../../../getting-started/my-account/#two-factor-authentication-premium-feature) on their next login. 2. **Remember 2FA login for a given number of days**, e.g. 30 days. 3. Press the blue **Apply** button to save your changes. ![Sys-admin-authentication-two-factor-authentication](Sys-admin-authentication-two-factor-authentication.png)