True, but the main game is similarly plagued by some of the worst cheats I've ever encountered in an online game and I'm almost certain there are some serious security vulnerabilities to be found there.

I stopped playing when some cheater impersonated me in the game chat and then crashed my game, after I insulted them (mostly out of curiosity to see what else their cheats can do). It's just so far beyond what happens with cheats in other online games. I've also heard of people being followed by cheaters across game sessions and being DDOSed.

The only thing that's similarly bad to the cheats in GTA Online is (the original) Modern Warfare 2 which has had RCEs.