There are a lot of missing details. Were all Sony computers updated to the latest version of updates? Didn't they have a firewall which could be circumvented? When not, why not?
And let's not pretend that the huge amount of data stolen leads more to the fact that the security policies were close to non-existent in this case. There a lot of ways to secure and hide your data if you really want to.
Of course this is also partly an issue of Windows but if I am aware of this then if I'd be the person responsable for the network and company security (then you *have* to be aware of this) I would take appropriate counter-measures, especially for company-sensitive data.








