Twitter confirms a security loophole exposing data of anonymous account owners

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Ngày cập nhật gần nhất: 15/4/2026

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Twitter confirms a security loophole exposing data of anonymous account owners

Twitter has verified a loophole in the code leading to an incident that exposed data late last year. In a blog post published last Friday, Twitter stated that attackers exploited a zero-day vulnerability before the company discovered and patched it in January 2022. The vulnerability was identified by a security researcher through the company's Bug Bounty program.

In its initial disclosure of the vulnerability, Twitter mentioned the company lacks evidence proving the exploitation of the vulnerability. However, in response to Bleeping Computer, one of the attackers claimed they utilized the loophole to access data from over 5.4 million user accounts.

Twitter confirms a security loophole exposing data of anonymous account owners

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Twitter stated that the company cannot determine the exact number of users affected by this data exposure incident. The loophole allowed attackers to view the email addresses or phone numbers linked to current Twitter accounts and use that information to identify the account owners.

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The company has released an update to patch the vulnerability, paying special attention to users with potentially targeted fake accounts. It also directly notifies account owners who may be identified as affected by the data exposure incident.

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For users wishing to conceal their identity, Twitter advises against publicly adding phone numbers or email addresses to accounts and recommends enabling two-factor authentication.

Frequently Asked Questions

What measures has Twitter taken to address the security loophole that exposed user data?

Twitter has released an update to patch the vulnerability, focusing on protecting users with potentially targeted fake accounts. The company also directly notifies account owners who may have been affected by the data exposure incident.

How did the attackers exploit the loophole to access user data on Twitter?

The attackers exploited a zero-day vulnerability before it was patched in January 2022. They accessed data from over 5.4 million user accounts, including email addresses and phone numbers linked to those accounts.

What should Twitter users do to protect their accounts from future data exposure incidents?

Twitter advises users to avoid publicly adding their phone numbers or email addresses to accounts. Additionally, enabling two-factor authentication can provide an extra layer of security against unauthorized access.

Is there any evidence that the vulnerability was exploited before it was discovered?

No, Twitter initially stated that there is no evidence proving the exploitation of the vulnerability. However, attackers claimed to have accessed user data, raising concerns about the extent of the breach.

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