If you really meant no harm by this post, then here's a little advice. When you write something like this, write it from a defensive point of view. You're post doesn't explain what steps can be taken to prevent attacks of this nature. You're wording in this post also gives the impression that you are promoting hacking attacks of this nature.

As far as "Hacking Exposed" is concerned, I love that book. Yes it does show exploits but it also lists measures that can be used to prevent them.