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2-factor authentication is activated at a system level by default (fig 4), and can only be turned off by OOONA users.

To change the authentication manner follow these steps:
From: Administrator > Web Administrator > Configuration > Security

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1. Select the default authentication manner (fig 5):

   1. Email

   2. SMS (Twilio)

   3. Google Authenticator (requires initial setup by the user)

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