Sure you can blame them and blame yourself. It doesn't have to be either or.
Depending if you think internet is a safe small town neighborhood or a hostile place full of bad actors constantly trying to gain entry into your systems. In the first case, nobody would say you're irresponsible because well it is unprecedented for burglary to happen there, in the second case the perpetrator would be guilty, but you'd be laughed at and ridiculed for being irresponsible as well.
If you happen to hold someone else info (cough Equifax cough) you might even be sued, though ... you probably also have friends in the government and tons of lawyers to not really be bothered by it.
Yes, you can and should.
For all intents and purposes, that thief may as well be a crocodile who slips in during the night and eats your children. We can put it on trial or negotiate with it about as effectively.
Was Equifax blameless in the events leading up to their breach? They could have prevented it, but they didn't. Or do we only expect responsibility from criminals and corporations?
I'm not advocating a crocodile hunt FFS, only that if they aren't going to play by our rules then maybe we should take responsibility for our own security by locking shit down, and stop acting like pointing the finger at the bad guy of the day somehow shields us from the consequences of mal-intent.
I agree that companies should do more about securing or disconnecting their networks, but I don't get to shoot someone just because they're so silly as not to be wearing a bullet proof vest.
Sure you can! Robbing is not something that happens by accident, and neither is hacking. I agree that the US should invest heavily in improving security, but taking the view that "pfff, who cares who did it!" is a terrible idea.
Yes.
To think otherwise removes the social construct that theft is wrong.