Try a reply to both watty and retric, which is, if someone wanted a botnet, the case is that they went after Sony, which indicates that Sony had a vulnerability

Try a reply to both watty and retric, which is, if someone wanted a botnet, the case is that they went after Sony, which indicates that Sony had a vulnerability. Of course, everyone has vulnerabilities, but the coincidence is likely that this is one that both existed, and the hackers knew about. Sorry that my best answer to the inherent question is 'coincidence'. That's supposing that someone wanted a botnet..and we're all supposing they had a great deal of planning. I'd expect such an event to hinge on a great deal of chance..