Uhhh, GTA V has been known for bad security for a long time. Streamers can't even play the game without a VPN or they get their IP leaked. Single-player games can (could, maybe still can? I am unsure of the current state of the game) get hacked and be messed with by hackers. This goes far beyond just "they used C++." This shows a great lack of caring for security in general from Rockstar, not just another thing that you can use to prove to yourself that "C++ is dangerous!"