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You can already use a third-party verification app like Google Authenticator and/or a USB security key.
Ok but by this way Iran’s regime can find out what Twitter account is my account.
And they also have my phone number as username
And easily can find me and take me to jail for my political activities in Twitter
Twitter supports a range of two-factor authentication options, as stated above.
This is a forum for developer platform questions. Please use help.twitter.com for issues like this.
Closing as off-topic.