It is quite clear to all that GTA V has a massive modding community. It is active, it is creative, it is booming, and it cannot be ignored.
People are making crazier and crazier, better and better, wackier and wackier modifications to Rockstar's blockbuster open world crime game. Fans have been filling GTA V's PC version to the brim with all sorts of entertaining new content.

However, we also know it ain't all good. People using mods in GTA Online, which constitutes as cheating and/or hacking, have become a common sight. Playing Online is now a gamble — will or won't you be put in a lobby with some cheat who invalidates the whole point of the game entirely?
Rockstar has cracked down on Online modders before, but that is a tale we've told a thousand times. In the end, the anti-modding methods broke the game, forcing Rockstar to back off, so now we have hackers piled upon hackers.