Twitter announced this Friday that it will only allow paying subscribers to use text messages as a two-factor authentication (2FA) method to protect their accounts.
Starting March 20, "only Twitter Blue subscribers will be able to use text messages as a two-factor authentication method," the company tweeted.
Two-factor authentication, which is intended to increase account security, requires an account holder to use a second authentication method in addition to the password. Twitter allows two-factor authentication by text message, authenticator app, and security key.
The company believes that "bad actors" are abusing phone number-based 2FA, according to a blog post published Wednesday that the company's tweet linked to.
Elon Musk, the owner of Twitter, tweeted "Yup" in response to a tweet from a user who said the company was changing policy "because telcos were using bot accounts to pump SMS 2FA," and that the company was losing 60 million users. dollars a year "in fraudulent SMS".
Once free for verified accounts of politicians, celebrities, journalists and other public figures, the blue check mark is now open to anyone willing to pay.
Last month, Twitter said it would price a subscription to Twitter Blue for Android at $11 a month, the same as for iOS subscribers.
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