Hacker Offers 5.4 million Twitter Account Details for $30,000

A threat actor acquired data from 5.4 million Twitter accounts by exploiting a now-patched vulnerability in the popular social networking site. Hacker is currently selling the stolen information on the prominent hacker site Breached Forums. 

In January, a Hacker report claimed the discovery of a vulnerability that may be used by an attacker to identify a Twitter account using the linked phone number/email, even if the user has elected to avoid this in the privacy settings. 

“The vulnerability allows any party without any authentication to obtain a Twitter ID(which is almost equal to getting the username of an account) of any user by submitting a phone number/email even though the user has prohibited this action in the privacy settings. The bug exists due to the process of authorization used in the Android Client of Twitter, specifically in the process of checking the duplication of a Twitter account,” reads the description in the report submitted by Zhirinovskiy via bug bounty platform HackerOne. 

“This is a serious threat, as people can not only find users who have restricted the ability to be found by email/phone number but an attacker with a basic knowledge of scripting/coding can enumerate a big chunk of the Twitter user base unavailable to enumeration prior (create a database with phone/email to username connections). Such bases can be sold to malicious parties for advertising purposes, or for the purposes of target

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