A 155 GB unencrypted build of Forza Horizon 6 has leaked online ahead of its release, confirmed by Playground Games to have originated from a reviewer, influencer, or industry insider, not a Steam employee or technical glitch. The leak includes thousands of assets, granting unauthorized early access to the game's content. This incident raises concerns about the handling of unreleased game builds and could impact future release plans and the game's success. Playground Games may be able to identify the source of the leak through attached identifiers in the early access copies sent for review.