Now Twitter users can enable two-factor without linking a phone number

guest · Nov 22, 2019

Now Twitter users can enable two-factor without linking a phone number
Extra security without reduced privacy
November 21, 2019
https://www.engadget.com/2019/11/21/twitter-2fa-phone-number/

Twitter has finally made a change users have been waiting a long time to see. No, it's not editable tweets, but as of today everyone can enable two-factor authentication on their account without linking a phone number.

While SMS-based two-factor can be a fallback for people who lose access to code-generating devices or don't have security keys, it's very vulnerable to SIM-swapping attacks.
Attackers used SIM-swapping to send tweets from Twitter CEO Jack Dorsey's account earlier this year, and while the exploit didn't use two-factor codes, it showed how vulnerable the SMS-based system can be.

However, a security engineer noted that you can't remove the number and rely simply on a security key for access since that's only supported on the website.
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Now Twitter users can enable two-factor without linking a phone number

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