You're obviously not aware that people could upload any type of file to the internet and put a keylogger code on it? Some people who get hacked get hacked because they got a keylogger from some random website (or even a sig on tip.it!). But I do think this is a good idea, but you would have to have 2 passwords--one for the IP address setting and one for your RuneScape account. If this was made so, there should also be an option to answer a question, like the account holder birthdate or something, this would make RuneScape a whole bunch better.