As a few of you know, I put up a topic with what security for Wifi DS has. I looked online about the 3DS, and much to my joy, it supports WPA2, which is what I have!! Though it won't matter for waaaaaaayyy too long, cuz I'm going to college (for civil engineering) this fall, so I'll be dependent on their Wifi security. But, however long I have it at home, I'll be covered!!