It is very possible this has been stated elsewhere, but I've noticed other games have PIN numbers and such on personal banks and guild banks. Just an idea i thought i would throw out there. I think this would increase the level of security in case of a hack (and yes I am quite aware that was the purpose of the authenticator but i still think it would be an easy FREE option to incorporate into the game that everyone would benefit greatly from.)
Examples:
Optional PIN for personal bank
Optional passwords on guild bank tabs set my GM or Officer.. ect
also very, sorry i noticed after reading a few comments that i shouldnt have psted this here.. im not real sure how to move this thread or if i can for that matter.. i just joined the forums today.