Hackers really have had their way with Sony over the past year, taking down its Playstation Network last Christmas Day and creating an international incident by exposing confidential data from Sony Pictures Entertainment in response to The Interview comedy about a planned assassination on North Korea’s leader. Some say all this is karmic payback for what’s become known as a seminal moment in malware history: Sony BMG sneaking rootkits (including some open source components) into music CDs 10 years ago in the name of digital rights management.