If you share what specific cheat you’re looking for (e.g., money, stealth, skill points), I can guide you toward a legitimate or safer method.
Many antivirus programs flag trainers as "false positives" because they modify active game memory. You may need to add the trainer as an exception in your security software. Top Community Recommendations LinGon +9 Trainer: Assassin 39-s Creed Unity Trainer 1.6 0