ID10T errors abound
Let's get something straight because people do seem a bit dim in understanding this. The DRM/rootkit issue was solely down to SONY USA, not the Sony Corporation. Once it was discovered that the rootkit issue existed Sony Corporation shot down SONY USA and apparently set rules that with regards to things like this so it doesn't happen again.
Again, afaik, the servers that were hacked are in the USA and protected by Sony USA. If there was lacksadaisical security then the decisions were down to SONY USA - not the head office,
So, in conclusion - shutting down the whole corporation is an idiotic idea conceived by a moron.
And just to finish - while people go on about the poor security I think you are blurring the issue or are just trolling. The did have the items well secured but sometimes hackers are determined.
Finally, if anonymous's DDoS attack did take down one of the PSN servers then yes, they can be held responsible because they effectively kicked down the gate and opened the door. They may not have committed the robbery but they are a part of it.
Oh, and if Sony deserve to be shutdown then Microsoft deserve to be shutdown and all their employees, past and present, lined up against the wall and shot.