Yet another Bitcoin exchange on Linode being hacked through the service console (I can't find the post where he mentioned it, but I remember reading it yesterda

Yet another Bitcoin exchange on Linode being hacked through the service console (I can't find the post where he mentioned it, but I remember reading it yesterday. He mentioned that the machine wasn't reachable on an external IP.). I'm currently not sure about weather this is partially to blame or not. Would a dedicated server have made it harder to access the machine?