User's Guide
Two Factor Authentication(2FA) is a second layer of security for your account. By utilizing applications such as Google Authenticator (available in the configuration screen) you'll be prompted to enter in a 2FA Code each time that you log into the system.
Setting up of 2 Factor Authentication
You're done and secured!! From this point as you access protected content, after you enter in your username and password you will be prompted with a 2FA screen. Use the code shown on your 2FA mobile/application to gain access.
Logging in with 2 Factor Authentication
Securing Git Repositories BITBUCKET
For Bitbucket Server, the administrator may enable a feature that will require a user to have enabled a 2FA session in order to interact with the Bitbucket Server through the Git protocol.