I'm not going to go so far and say that they are performing a service or a public good. By targeting a production system they are causing harm. But these organizations can recover, and in my opinion, that is Anonymous's point. They aren't trying to put Sony out of business, they probably love playing on a PlayStation as much as anyone. Their point though is that if Sony is going to operate the PlayStation Network they need to do so in a responsible way.
While Sony, Lockheed Marting and PBS are probably still stinging from the systems that Anonymous brought down, they would have paid big bucks to learn these same lessons in a less public way. In the continuum of hacker ethics, Anonymous is tilted over to the unethical side, but not so far. There are other groups who are working to get data and use that data to do bad things. Anonymous, from my perspective, is only after public embarrassment. It is painful, and nobody wants to live through it, but it is survivable.
Is there a gap in our government? Is Anonymous filling that gap? Maybe. The gap that I'm thinking about is the cop, or maybe a better analogy would be the insurance broker who comes to your store and says, "I see that you are open for business. I'd like to insure your business. Here's the rate per month for your business [really big number], but if you put a lock on that door and secure it when you leave for the night, and get an alarm system and video camera over the cash register I could insure it for this [slightly lower number]."
The problem is, or the gap is that there is no person objectively looking at the risk of online businesses. The Internet has tons of opportunity for people to compete against the giants of the industry on relatively equal footing. But like anything, if you cut corners then sometimes the risk gets you. Could there be some company out there to perform an assessment and tell you what you need to do to harden your defenses? Sure, I'm friends with a lot of those people, but it isn't cheap. Could this be a service from a good insurance company? Yes, that would be the insurance company I would choose. But until the people who comprise Anonymous decide that they want the regular 9-5 lifestyle and lend their considerable skills to the corporate world, we have them as the watchdog of the regular consumer, goading organizations into enacting reasonable security defenses.
