Attacking Online Games

Attracted by the catchy title "Exploiting Online Games: Cheating Massively Distributed Systems" I bought the book by Hoglund and McGraw. It wasn't exactly what I expected because it handles mostly client side attacks on the game client. It was also quite verbose and could be compressed to a much smaller volume but reads easily. I didn't mind the book discussing only World of Warcraft because I was looking for fundamental principles behind the attacks.

I am going to discuss the following points:

Online Game Security in general
Attack points