Charts handed out by Sony at one of its press conferences to explain the PSN state of playshow how the company thinks its gaming network was hacked into, as well as giving a list showing the number of users from each region who’s data may have been compromised.

This chart was handed out to people attending the Sony press conference on May 1st regarding the PSN attacks.
Sony also handed out how the hackers manage to attack PSN, diagram of that below:

[Source]
