"pirate mods" Assetto Corsa (AC) community primarily refers to the unauthorized redistribution of paid (premium) content from reputable modding studios like Race Sim Studio United Racing Design VRC Modding Team
Maintain that professional-grade mods require hundreds of hours of work, and piracy discourages creators from further development. Risks of Using "Pirate" Mods
Content Manager will automatically notify you if popular tracks or core plugins (like CSP) have official updates available.
Free mods that have been slightly tweaked, rebranded, and re-uploaded to third-party ad-heavy websites by bad actors looking to profit off someone else's work.
You do not need to turn to pirate sites to get an elite Assetto Corsa experience. The legitimate modding scene offers unparalleled quality, much of it completely free. Where to Find Legitimate Mods