Setting MFA for security

1. You can find the MFA in 'security credential', and please click the 'activate mfa'.

2. Because I want to use google otp, I'll select 'A virtual MFA device'.

3. After scanning the scan code, you can insert authentication code1 and 2.

first, you can insert the code in your google otp, and then if code is changed after a few time,

you can insert changed code as authentication code2.

4. After logging out, you will requre the authentication code when you log in.