In my experience security has never been a consideration for GTA. It has always been possible to dox players through their community interface and through the game itself at least up to GTA-V. It is also why myself and family members have always had to use mod menus to keep the other mod menu players from booting us. The real security for those games was provided by 3rd party mod menu developers.
I personally just find it weird. I just assumed the leak was a controlled leak intended to build/keep the hype going ( I have become mildly cynical over the years ). Maybe I was wrong.
Isn't it the other way around? Doesn't pissing off your employees just undermine security and quality?