I don't disagree. I'm not trying to tear down Live or defend PSN. I've got both but barely use either online anymore. Just meant that this type of stuff can happen to anyone if there are people motivated enough to do it.
As an analogy, there is the notion of Macs being safer than PCs. Its not true. The PC is just targeted significantly more than the PC. In this situation, hypothetically, Sony may have had a more advanced security than Live. But it pissed off a large and talented group of hackers. Those hackers then focus on Sony.
I doubt Sony's security is more advanced though. This is definitely a black eye for Sony. And I have a feeling is going to look even worse as anger grows about the wait to inform of the stolen data.
Sony's security is pretty bad when all it takes is a person to flash a ps3 with some ripped off rom and the dev part of their back end opens up which leads to the ability to see everyone's information. That just sounds like a bunch of lazy people to me.