You can download the Google Authenticator for your Android mobile by
clicking here

All you need to do is click "Install"
Here is an example on how to set up 2FA. Google Authenticator is used for this demonstration;

Click the “⋮ ” button then Add account.

Choose Other Account (Google, Facebook, etc).

Click on Scan QR Code or Enter Code Manually.

Enter the 6 digit code for Authentication on your KOT4X Account and click on Submit
You may click here for guidance with enabling your 2FA on your KOT4X account.