1.3 The authentication method of NTT Communications Business Portal

The authentication method for logging in Business Portal is the 2-Step Verification.

2-Step Verification requires users to enter a unique security code in addition to the password when users sign in Business Portal.

We provide the TOTP authentication or the MailOTP authentication as a second verification.

Portal Admin can change the Second Verification method of portal users. Please see 4.1 Managing Users how to change the method.

What’s TOTP authentication(Time-based One Time Password)

Users could get the verification code via the authenticator app in user’s devices like a smartphone and a tablet. Users should install the authenticator app like Google authenticator, Microsoft authenticator etc. on user’s devices.

What’s the MailOTP authentication (Mail One Time Password)

You could get the verification code via e-mail to your mail address after first verification.