Better safe than Sony

An american investigation has revealed that Sony knew about the securityflaws -and chose not to fix them.

Apparently security experts discovered several forumtopics which discussed PSN's lacking security.
These forums showed that PSN used Apache Web Server software, which either was patched or had firewalls installed, and the forums was monitored by Sonys employees for two to three months without taking any actions.

The investigators even saw posts on criminal forums which said that the value on information from Sony had sunk because it was too easy to obtain.