In September 2003, Half-Life 2, then one of the most-anticipated upcoming games, had its source code stolen from Valve’s internal network.
A follow-up report from Vice, details how the hackers began leaking the stolen source code online after failing to extort EA.
The leak, known colloquially as the “Nintendo Gigaleak,” included information on canceled games, prototypes, source codes, development tools, internal communication, and more.
In June 2021, hackers breached EA’s systems and reportedly stole 780GB of data, including the source code for both FIFA 21 and DICE’s Frostbite Engine.