From Paul Roberts at ThreatPost:
It would be easy to say that the lesson of HBGary is that "anyone can get hacked." After all, the company's founder, Greg Hoglund is one of the smartest security folks around - hands down. He's a recognized expert on malware and, literally, wrote the book on rootkit programs. HBGary Federal's customers included the U.S. Department of Defense as well as spy agencies like the CIA and NSA.
Or maybe the lesson of HBGary is simply not to "kick the hornet's nest," so to speak: needlessly provoking groups like Anonymous who have shown themselves to be hungry for publicity and have little to lose in a confrontation.