Keys already found? (Score 2, Interesting)

The article states: "Also, last June a Massachusetts Institute of Technology student claimed to crack the Xbox's security system, potentially allowing users to run any software on the system." Following the link... "Using a custom circuit board, made in spare time in a three-week period for a total cost of about $50, Massachusetts Institute of Technology student Andrew Huang was able to tap traffic between Xbox components and uncover the keys that unlock the device's protection," So does that mean the security keys have already been found? Why can't someone working for the NeoProject do the same thing that this guy did? It seems it would be more feasible to rebuild something that has worked in the past than it would be to try and brute force the key.