Bad News on the jail broken iphone

The latest news on the iphone is when it is jail broken it can get hacked really easy. Once its hacked and you go to a site that asks for personal information, the hacker can see everything. How? Well once its hacked they create a fake web page, for example say you go to chase.com on a hacked i phone, your not really going to chase.com your going to one thats similar to it that the hacker created, he then just takes your personal info.