What you need to know. The new leak allegedly stems from a 400gb trove of user data said to have been exfiltrated by a disgruntled employee during mass layoffs at x following musk's 2022 acquisition of the company. A colossal 400gb trove containing data from 2.873 billion x (formerly twitter) users has surfaced on hacker forums. X hit with massive data breach with 200 million records leaked, including emails Tech expert kurt “cyberguy knutsson offers seven tips to help protect yourself. Safetydetectives’ cybersecurity team stumbled upon a clear web forum post where a threat actor published a.csv file allegedly containing over 200 million records from x users.
What happened in the x data breach In march 2025, reports surfaced regarding a large dataset containing x (formerly twitter) user information that had become available on various online hacking forums and dark web marketplaces While initial descriptions highlighted a The new dataset combines an old leak from 2023, when threat actors exposed over 200 million twitter user emails, with new data that is primarily public The cybernews research team notes that almost all appended data fields are publicly available on x profiles.
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