Twitter announced that its users can protect their accounts with 2-Factor Authentication (2FA) even if they dont have a phone number. Currently, the users of the popular social network could use it with their mobile phone. Twitters 2FA could leverage on text messages, mobile security apps, and security keys, the company now provides additional options to its users. The feature is only supported on the web, the latter isn’t currently supported outside web. Users interested in how to enable 2FA for their accounts can consult this page.”]
Source: https://securityaffairs.co/wordpress/94330/social-networks/twitter-2fa-without-phone.html