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Requiring two-factor authentication in your organization

Organization owners can require organization members and outside collaborators to enable two-factor authentication for their personal accounts, making it harder for malicious actors to access an organization's repositories and settings.

About two-factor authentication for organizations

Two-factor authentication (2FA) is an extra layer of security used when logging into websites or apps. You can require all members and outside collaborators in your organization to enable two-factor authentication on GitHub Enterprise Server. For more information about two-factor authentication, see "Securing your account with two-factor authentication (2FA)."

Warnings:

  • When you require use of two-factor authentication for your organization, members and outside collaborators (including bot accounts) who do not use 2FA will be removed from the organization and lose access to its repositories. They will also lose access to their forks of the organization's private repositories. You can reinstate their access privileges and settings if they enable two-factor authentication for their personal account within three months of their removal from your organization.
  • If an organization owner, member, or outside collaborator disables 2FA for their personal account after you've enabled required two-factor authentication, they will automatically be removed from the organization.
  • If you're the sole owner of an organization that requires two-factor authentication, you won't be able to disable 2FA for your personal account without disabling required two-factor authentication for the organization.

Authentication methods that support 2FA

Authentication MethodDescriptionTwo-factor authentication support
Built-inAuthentication is performed against user accounts that are stored on the GitHub Enterprise Server appliance.Supported and managed on the GitHub Enterprise Server appliance. Organization administrators can require 2FA to be enabled for members of the organization.
Built-in authentication with an identity providerAuthentication is performed against user accounts that are stored on the identity provider.Dependant on the identity provider.
LDAPAllows integration with your company directory service for authentication.Supported and managed on the GitHub Enterprise Server appliance. Organization administrators can require 2FA to be enabled for members of the organization.
SAMLAuthentication is performed on an external identity provider.Not supported or managed on the GitHub Enterprise Server appliance, but may be supported by the external authentication provider. Two-factor authentication enforcement on organizations is not available.
CASSingle sign-on service is provided by an external server.Not supported or managed on the GitHub Enterprise Server appliance, but may be supported by the external authentication provider. Two-factor authentication enforcement on organizations is not available.

Prerequisites

Before you can require organization members and outside collaborators to use two-factor authentication, you must enable two-factor authentication for your account on GitHub Enterprise Server. For more information, see "Securing your account with two-factor authentication (2FA)."

Before you require use of two-factor authentication, we recommend notifying organization members and outside collaborators and asking them to set up 2FA for their accounts. You can see if members and outside collaborators already use 2FA. For more information, see "Viewing whether users in your organization have 2FA enabled."

Requiring two-factor authentication in your organization

  1. In the top right corner of GitHub Enterprise Server, click your profile photo, then click Your profile. Profile photo

  2. On the left side of your profile page, under "Organizations", click the icon for your organization. organization icons

  3. Under your organization name, click Settings. The settings button

  4. In the left sidebar, click Security.

    Organization security settings

  5. Under "Authentication", select Require two-factor authentication for everyone in your organization, then click Save. Require 2FA checkbox

  6. If prompted, read the information about members and outside collaborators who will be removed from the organization. Type your organization's name to confirm the change, then click Remove members & require two-factor authentication. Confirm two-factor enforcement box

Viewing people who were removed from your organization

To view people who were automatically removed from your organization for non-compliance when you required two-factor authentication, you can search your organization's audit log for people removed from your organization. The audit log event will show if a person was removed for 2FA non-compliance.

Audit log event showing a user removed for 2FA non-compliance

  1. In the top right corner of GitHub Enterprise Server, click your profile photo, then click Your profile. Profile photo

  2. On the left side of your profile page, under "Organizations", click the icon for your organization. organization icons

  3. Under your organization name, click Settings. The settings button

  4. In the Settings sidebar, click Audit log. Org audit log settings in sidebar

  5. Enter your search query. To search for:

    • Organization members removed, use action:org.remove_member in your search query
    • Outside collaborators removed, use action:org.remove_outside_collaborator in your search query

    You can also view people who were removed from your organization by using a time frame in your search.

Helping removed members and outside collaborators rejoin your organization

If any members or outside collaborators are removed from the organization when you enable required use of two-factor authentication, they'll receive an email notifying them that they've been removed. They should then enable 2FA for their personal account, and contact an organization owner to request access to your organization.

Further reading