Er, if you were 'hacked' how did you use the "in-game reporter"?
Please define 'hacked' as you use it because in the usual sense of 'hacked account' you'd not be able to log in or change a password.
how did you get hacked and they get past the IP authentication?
Sounds like the bank bug, has a hacker would need remote access to your computer or your email to be able to fully hack you. Cause if you log into your account/game from a new site it asks for a code.
how did you get hacked and they get past the IP authentication?
The IP authentication isn't actually an IP auth, it's a HWID auth triggered by the client, if I'm not mistaken.
the reason I'm saying it's not an IP auth is because IP's tend to be volatile, especially if your ISP does 'dynamic IP leasing' (Which means your IP changes every time you reset your modem, basically)
HWID's and MAC addresses can be spoofed.
I think this "IP-check" is there to make account sharing "harder" and has nothing to do with security.
If you shared your acc you would have to give your friend your email acc login and pw too.