Nexus Mods is a popular game modification site where users can download modifications for games such as Skyrim, Fallout, Witcher, Dragon Age, and many more. Nexus Mods has disclosed that an unauthorized actor hacked their services on November 8th, 2019 through an exploit in their legacy codebase. It is strongly suggested that all users change their passwords on the site, especially if you commonly reuse the same password at every site, so that if your information is disclosed at a data breach, it cannot affect your accounts at other sites.
Source: https://www.bleepingcomputer.com/news/security/nexus-mods-game-modding-site-discloses-data-breach/