How to hack an MMO (Raph Koster)

“The first thing to realize is that encryption of the data stream isn’t going to stop anyone serious.” – this page lists half a dozen conceptual ways that people will try to hack your MMO. It’s nothing like as exhaustive as the title suggests, but given it’s on Raph’s blog, the comments section is likely to pile up with many different additional concepts and information from world + dog.