Additional Security Features for Your Apple ID on iTunes Connect
Two-step verification is an additional security feature for your Apple ID that's designed to prevent anyone from accessing or using your Apple ID, even if they know your password. If you’re using an app that doesn't support two-step verification codes, such as iTunes Producer, Application Loader, or Transporter, you can generate an app-specific password. Learn more about two-step verification.
Two-factor authentication, the improved security method built directly into iOS 9 and OS X v10.11, is being rolled out gradually to users who meet specific system requirements and other criteria. We’ll make the feature available to more users over time, until we can offer it to everyone. Learn more about two-factor authentication.