Enroll to 2-Factor Authentication (2FA) and Register Your First Mobile Device


註冊雙重認證 (2-Factor Authentication, 2FA) 及登記首個移動設備

Applies To

All CUHK Accounts

 

What is 2FA and why should I need it?

甚麼是雙重認證？為何我必需使用？

Using a second factor (such as your smartphone) to approve login requests prevents others from accessing your account even if they know your password. Please refer to ITSC website for more information.

即使他人知悉你的密碼，透過第二重認證（如你的智能手機）能有效核實登入者的身份並將不速之客拒之門外。詳情請瀏覽 本處網頁。

 

 

 

Solution

The enrollment could be done using a smartphone solely or using a smartphone and a computer. The steps using either method are identical.

註冊可以透過智能手機或使用智能手機加上電腦進行，兩者操作過程相同。

 

  1. Download and install Duo Mobile app from App Store (iOS) or Play Store (Android).
    到 App Store (iOS) 或 Play Store (Android) 下載 Duo Mobile。

    Screenshot 1.png

  2. Visit registration portal at https://duo.itsc.cuhk.edu.hk/ using any web browser. Sign-in using your email address and OnePass password.
    造訪註冊網站 https://duo.itsc.cuhk.edu.hk/ 並以你的電郵地址和 OnePass 密碼登入。

  3. You will see a window with Protect Your CUHK Account shown at the centre. Click Start setup.
    畫面中央會顯示 Protect Your CUHK Account。請按 Start setup。

    NewEnrol_1.png

  4. Click Next to proceed.
    點擊 Next 繼續。

    NewEnrol_2mix.png
  5. Select DUO Mobile to proceed.
    點選 DUO Mobile 繼續。

    NewEnrol_5.png

  6. Select I have a tablet (even you are using a smartphone).
    點選 I have a tablet （即使你現正使用智能手機）。

    NewEnrol_6.png

  7. Make sure you have downloaded Duo Mobile App to your device (see step 1), then click Next.
    請確認你已下載 Duo Mobile App （詳見步驟 1），然後按 Next。

    NewEnrol_7.png


  8. Link your account to Duo Mobile app.
    將你的帳戶連結至 Duo Mobile。

    • If you visit the registration portal using a computer: you will see a QR code shown on screen. Open Duo Mobile app on your mobile phone, tap Continue (iPhone/iPad) / Set up account (Android) >> Use a QR code and scan the QR code that shown on screen.
      如果你透過電腦造訪註冊網站：你會看見畫面顯示一個二維碼。請在智能手機打開 Duo Mobile，點一下 Continue (iPhone/iPad) / Set up account (Android) >> Use a QR Code，然後按指示掃瞄二維碼。

      NewEnrol_8.png

    • If you visit the registration portal using a smartphone: tap Continue and open Duo Mobile app when prompted.
      如果你透過智能手機造訪註冊網站：點一下 Continue 並按照指示打開 Duo Mobile app。

      NewEnrol_8_2.png


  9. Enter an Account Name (default is CUHK). Tap Save to proceed.
    設定帳戶名稱（預設為 CUHK）。點一下 Save 繼續。

    IMG_6294.PNG


  10. You will see Added Duo Mobile screen appears. Tap Continue to proceed.
    智能手機會顯示 Added Duo Mobile 畫面。請點一下 Continue 繼續。

    NewEnrol_9.png

  11. You may tap Log in with Duo to test your enrolled device. Please refer to article to learn ways to pass DUO 2FA.
    你可以點一下 Log in with Duo 測試新登記裝置。可參閱文獻如何通過Duo二次認証。

    NewEnrol_10.png

  12. Follow the on-screen instructions to go through the remaining steps, in particular, Allow notifications to let you seamlessly receive and respond to 2FA push message.
    請按畫面指示完成其餘步驟，尤其請允許通知 (Allow notifications)，這可使你無縫地接收及回應雙重認證的推送信息。

    IMG_6296.PNG Duo App Enable Push.PNG IMG_6297.PNG

  13. You will see an account is added in your Duo Mobile app once the above step is completed.
    成功完成以上步驟後，你會在 Duo Mobile 內見到一個新連結的帳戶。

    IMG_6298.PNG


  14. You will see a message Almost Done shown. Click GET MY RESCUE CODES.
    畫面中央會顯示 Almost Done。請按一下 GET MY RESCUE CODES。

    NewEnrol_12.png

  15. A list of rescue codes will be generated (shown in red arrow). Please save these codes in a safe place.
    你會看見五組 rescue code （紅色箭頭示），請妥為保存。

    NewEnrol_13.png

  16. Click LOG OUT to complete your enrollment. Done.
    最後，按 LOG OUT 登出註冊網站。完成！

    Caution: DO NOT remove the DUO Mobile app.
    注意：請勿移除 DUO Mobile app。

    NewEnrol_14.png

 

 

When I need to use 2FA ?

何時需要使用雙重認證？

You will be asked to verify your identity using either respond to push message or enter a passcode when sign in 2FA protected apps.

當登入 支援雙重認證的系統或服務 時，你需要透過 回應推送信息 或 輸入臨時密碼 以核實你的身份。

 

Switch to a new phone in future?

轉換到新的智能手機？

Read this article to know how to transfer the 2FA registration to your new mobile phone. It is recommended to keep your old phone on hand until it's all set.

請 按此查閱 將 Duo Mobile 轉移到新手機的方法。完成新手機設定前，本處建議你儘可能保留舊機以利交接。

 

I forget to bring my phone after enrollment. What should I do?

我註冊後忘記攜帶手機。請問如何登入？

Read this article to know how to obtain a bypass code using your CU Link card (i.e. student card / staff card) and using the bypass code to verify your identity.

請 按此查閱 如何透過 CU Link 咭（即學生證／職員證）取得臨時密碼以核實你的身份。

 

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