The hacker group Anonymous has apparently responded to the attacks on Paris by posting a video declaration of war against ISIS.
In the as-yet-unverified video, posted on YouTube, a spokesperson wearing the group's signature Guy Fawkes mask said the group of hackers would use its expertise to wage "war" on the militant group.
Which is a form of privatized warfare, as much as jihadi groups represent that, too.
How long before Western groups begin waging private warfare in the physical world as well?