
Twitter has disabled two-factor authentication (2FA) using SMS for non-Twitter Blue subscribers from today. Going forward, only Twitter Blue members will be able to use the SMS method to keep their Twitter accounts safe. Twitter claimed that 2FA via SMS method was abused by bad actors, even though it is a popular and easy way to safeguard a Twitter account.
As part of this change in policy, Twitter will also turn off 2FA for all non-Blue subscriber accounts completely. Users who do not switch away from SMS verification or pay for the Blue subscription before the deadline are expected to lose the additional security for their accounts leaving them vulnerable to hacking.
While non-Blue subscribers can enable 2FA on their accounts using authenticator apps like Google Authenticator, most similar apps require users to pay to enable 2FA for their accounts.
Elon Musk also tweeted “Yup” in reply to a user tweet that the company was changing policy “because Telcos Used Bot Accounts to Pump 2FA SMS,” and that the company was losing $60 million a year “on scam SMS.”
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