(Photo/Reuters)

If Twitter users are unwilling to pay to upgrade to "Blue Twitch" Twitter Blue subscribers, although they can use Twitter normally for free, the difference is that they do not have functions such as blue tick marks and long posts.

However, it should be noted that after the original Twitter user enters the account number and password, an additional two-step authentication system mechanism (2 Factor Authentication, 2FA) is required. Twitter officially provides the channels, including: A high-strength random security password sent by SMS, and a third-party security key verifier.

Among them, the text message double verification mechanism that provides Twitter users with a high-strength random security password sent by text messages after entering their mobile phone numbers will usher in a new version of the policy.

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Twitter recently published an article on its official blog, pointing out that starting next month, that is, from March 20, only "Blue Gougou" Twitter Blue subscribers will be able to enjoy high-quality mobile phone text messages sent by the two-step verification system. Strong random security password.

That is to say, if the original Twitter user has not joined the Twitter Blue subscribers and upgrades to obtain the "Blue Tick" badge.

Since March 20 this year, it is no longer possible to use mobile phone text messages to obtain 2FA verification codes.

Only through third-party security key authenticators.

If you pay to become a Twitter Blue subscriber, you will enjoy the exclusive function of SMS verification code for account security.

According to foreign media reports, the reason why Twitter adopts a new policy of "charging" for the SMS codes of the two-step verification system is mainly due to two key reasons. Authentication text messages, resulting in spam text messages and fraudulent behavior; second, Twitter said that in the past, fraudulent text messages caused an annual loss of about 60 million U.S. dollars (about NT$1.82 billion).

It is added that after Musk took over the Twitter community platform last year, he vigorously promoted the "Blue Tick" Twitter Blue subscription payment service, and there will be a blue Tick mark next to the personal photo. As the exclusive identification for the user to obtain entity identity verification, the paid price of Twitter Blue on the Twitter website platform is $8 per month, and at the same time enjoys the specific exclusive functions of the advanced version, such as the ability to publish a single long-form article up to 4,000 characters (Currently the first to go online in the United States), enjoy less advertising, etc.

Currently, the Twitter Blue subscription service offered on the Twitter website is $8 (approximately NT$243).

However, if you download the mobile version of the mobile version of the Twitter application app through the iOS system and the Android system, the subscription service fee for upgrading to Twitter Blue will be US$11 (approximately NT$334).