so I have seen a few china attempts to access my account. now I think just like website can restrict site access to countries, for increased security I suggest being able to make your account country restricted. for some it might not work, but for people like me who have no plans on leaving the united states, it would add an extra layer of protection. I have done this to my websites so I don't believe to code it would be to hard.
ex. I would love to lock my account to US only, thus auto blocking any attempt from any other country. hope this makes sense