The hacking community is a diverse lot, and big conflicts have been known to erupt with fury.

Perhaps the most famous was the so-called Great Hacker War in the early 1990s, which featured the Masters of Deception squaring off against the Legion of Doom. Smaller groups were to said have also been involved. To be sure, some maintain that the battle never really happened. It was all a myth.

But some recent conflicts seem quite real. The hacker group Anonymous was forced to issue a statement recently denying a threat from someone purporting to represent the group against the NYSE Euronext as the Occupy Wall Street movement got underway. In addition, two hacker groups are now reported to being going after one another in cyberspace. According to ComputerWorld, a "hacking group called d33ds broke into the online shop of a rival hacker who sells unauthorized access to high-profile websites and data." They then posted sensitive information for the entire hacking community to see. 

The illegal marketplace in the past has been used "to advertise information stolen from websites belonging to the U.S. Army, the U.S. Department of Defense, the South Carolina National Guard and other institutions. Its owner, a hacker calling himself Srblche, also offered services that included compromising the particular servers his customers wanted." Srblche has been accused in the past by rival hacker groups of stealing others tools and "trying to profit from them."

For security managers, this is nothing new. It's never wise to think that the cybercriminals are too preoccupied to target new victims.

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