What is Google 2FA?
It adds an extra layer of security to your account. When you sign in, a notification (Google Prompt) will pop up on your mobile phone asking, “Is this you?” Simply tap “Yes” to log in immediately. It is the most secure and convenient method.

Prerequisites

  • Your mobile phone (with the Gmail app installed and logged into your @bu.ac.th account)
  • A computer (or a secondary mobile device) to access the setup page

Setup Instructions
Step 1: Access the Setup Page

  • On your computer, go to myaccount.google.com and sign in with your @bu.ac.th email.
  • Click on Security & sign-in from the left-hand menu.
  • Scroll down to find 2-Step Verification and click on it.
  • Click Get Started (the system will prompt you to enter your password again).

Step 2: Select Google Prompt

  • Choose Google Prompt. At least one registered device must be displayed. If no device appears, please add your @bu.ac.th account to your mobile phone first.
  • Click Turn on 2-Step Verification.
  • Click Done.
  • Once activated, the Security & sign-in menu will show that 2-Step Verification is enabled.
  • When signing in next time, a prompt will be sent to your mobile phone. Tap “Yes, it’s me” on your screen. If you receive a prompt when you are not trying to log in, tap “No, don’t allow” to block unauthorized access, and change your password immediately.

Troubleshooting & Quick Solutions

Issue Solution
1. No prompt pops up on your phone Open the Gmail app on your phone; the notification prompt will appear immediately.
2. Prompt appears when you did not attempt to sign in Tap “No” immediately. This indicates someone knows your password—change it as soon as possible.
3. Lost phone / No internet connection / Unable to log in On the login screen, click “Try another method” and enter one of your saved Backup Codes.