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A data dump of Twitter user details on an underground forum appears to stem from an API endpoint compromise and large-scale data scraping.
The leaked data included names, usernames, email addresses, follower counts and creation dates
A data leak described as containing email addresses for 200 million Twitter users has been published on a popular hacker forum for about $2. BleepingComputer has confirmed the validity of many of the email addresses listed in the leak. [...]
Twitter has suffered a data breach after threat actors used a vulnerability to build a database of phone numbers and email addresses belonging to 5.4 million accounts, with the data now up for sale on a hacker forum for $30,000. [...]
In January, KrebsOnSecurity examined clues left behind by "Wazawaka," the hacker handle chosen by a major ransomware criminal in the Russian-speaking cybercrime scene. Wazawaka has since "lost his mind" according to his erstwhile colleagues, creating a Twitter account to drop exploit code for a widely-used virtual private networking (VPN) appliance, and publishing bizarre selfie videos taunting security researchers and journalists. In last month's story, we explored clues that led from Wazawaka's multitude of monikers, email addresses, and passwords to a 30-something father in Abakan, Russia named Mikhail Pavlovich Matveev. This post concerns itself with the other half of Wazawaka's identities not mentioned in the first story, such as how Wazawaka also ran the Babuk ransomware affiliate program, and later became "Orange," the founder of the ransomware-focused Dark Web forum known as "RAMP."