Mangadex database privately traded
https://www.bleepingcomputer.com/news/security/mangadex-discloses-data-breach-after-stolen-database-shared-online/
Manga scanlation site MangaDex disclosed a data breach last week after learning that the site's user database was privately circulating among threat actors.
MangaDex is one of the largest manga scanlation (scanned translations) sites where visitors can read manga comics online for free.