Rockstar Games has finally released a new security update to fix an issue with the GTA Online exploit, which led to players' profiles being banned.
Patch notes
Security:
Implemented a new data protocol in GTA Online to improve the
security of network sessions and player-to-player messaging;
Fixed an issue that could result in a player’s GTA Online
experience being modified by a third party, including:altering
GTA$ balance, RP level, Bad Sport status, and other player stats,
manipulation of players being kicked or crashed;
Game Stability and Performance.
Game Stability and Performance:
General stability improvements.
Some modders report that the game no longer leaks the external IP of players in memory. Other modders deny this information.
There will be less modders in the game temporarily until they find a new security flaw.