Game Freak, the developer of Pokémon, experienced a major data breach named 'Teraleak' revealing sensitive Pokémon data, including source code and unreleased projects, affecting over 2,600 employees. The breach exposed concept art, cancelled games, and materials dating back 25 years, leading to a significant impact on the gaming industry. Leaked files include Pokémon designs from past and upcoming games, such as Pokémon Legends Z-A and the 10th generation 'Gaia'

 Nearly 1 terabyte of sensitive Pokémon data leaked in Game Freak hack

The breach also disclosed internal documents, scrapped projects, and a tech demo for the Nintendo Switch 2. While the hack involved personal details of employees, it also included development resources like source code for Pokémon Bank and Pokémon Go test builds. The leak highlighted various Game Freak projects' codenames, exposed internal emails, technical documents, and QA builds. The extensive leak contains legitimate and fake content challenging its verification, with the full scope of the breach yet to be fully comprehended, leaving Game Freak to handle the aftermath as further details emerge.
https://hackread.com/teraleak-pokemon-developer-game-freak-hacked-data-leak/