"Scraping" rather than a traditional server breach. Attackers submitted lists of emails/phone numbers to the API to see which accounts they belonged to. Feature Breakdown: Contents of the Archive
Verified status, location, account creation date, and follower/following counts. Visuals: URLs for profile images. Impact and Versions Twitter_2022.7z
Later iterations (often titled similarly) appeared in early 2023, claiming to contain over 200 million unique records, which researchers believe was a "cleaned up" version of earlier, larger datasets. Security Risks Twitter Data Breaches | Panorays "Scraping" rather than a traditional server breach