2. Register iMac/Macbook with Chrome

Starting point:

• You have received a personal 2FA code list. (I no longer have the code list, what can I do?).
• You are using a device with Touch ID sensor (fingerprint unlock). If your device does not allow this, Chrome cannot be registered as a second factor. You will then have to switch to Safari.
• You are using a Mac or MacBook with macOS 11 ("Big Sur") operating system or higher.
• You are using Google Chrome version 86 or higher as your default browser.

You call up the URL https://2fa.uni-hamburg.de and land on a login page where you log in with your B-identifier.

Immediately after login, you will be asked to enter two codes from your personal 2FA code list. Please enter the desired codes in the corresponding window and then click "Check".

When you have entered the requested codes, the overview page of the 2FA configuration interface appears. Here you can register, manage or delete all the devices you want to use for authentication.

If you have not yet registered a device, the overview is empty and the traffic light graphic is red. If you have already registered a device, it will be displayed in the overview under the name you have assigned and the traffic light graphic will be yellow.

Click on "Set up device" to deposit your Mac/ MacBook as a factor.

In the window that appears, select the "This device" option and click the "Proceed with registration" button.

A new window will appear asking you if you have already prepared the device you want to register.

If you use Chrome as your default browser, there is no need to prepare it separately and you can confirm this point by clicking the blue "I have prepared my device" button.

In the next window, you will be asked to assign a name for the device. A unique name helps you to better distinguish the registered devices in the configuration interface. After entering the device name, please click on "Continue".

After entering the name, the system will ask you for permission to store the credentials for 2FA in the device. Please click on "Next".

The system asks you to confirm the login. Depending on the login options you have configured on your macOS device, you can confirm the process via Touch ID or by entering your device password.

• For Touch ID, please place your registered finger on the fingerprint scanner on your device.
• If you want to use your password, please click "Use password" and enter the corresponding password.

If you have not configured a finger for Touch ID, you can enter the password directly and confirm with "OK".

We recommend registering additional devices, e.g. a smartphone, so that you are more flexible later. The following instructions will help you:

• Instructions for Apple devices
• Instructions for Windows devices
• Instructions for Android devices

Congratulations!

You have successfully registered your device with the 2FA app of the University of Hamburg. From now on, the registered device is available to you as a second factor – this instruction tells you how authentication works with it.