They do a hardware security token as well and the collectors edition came with one free. I'm not sure if you can buy them at the moment though (I've got the software one on mine now so it won't let me see info on the physical one), but if you can buy them still, login to:

https://secure.square-enix.com/accou...n?cont=account

Click One-Time Password in the bottom left and the details should be there.

That's the only way around the IP blocks though I think, but I'm happy to be proved wrong!