If you ask security experts why more cyber criminals aren't brought to justice, the answer you will probably hear is that U.S. authorities simply aren't getting the cooperation they need from law enforcement officials in Russia and other Eastern European nations, where some of the world's most active cyber criminal gangs are thought to operate with impunity.

But I wonder whether authorities in those countries would be any more willing to pursue cyber crooks in their own countries if they were forced to confront just how deeply those groups have penetrated key government and private computer networks in those regions?

As Security Fix documented in When Cyber Criminals Eat Their Own, a common misconception about hacker groups in Russia and the former Soviet nations is that they avoid targeting their own people. On the contrary, aggregate statistics from recent attacks and outbreaks strongly suggest that perception no longer matches reality.

One gradual but notable shift on this front has been the increasing willingness of Russian and Eastern European cyber gangs to target companies in their home countries in virtual shakedowns known as distributed-denial-of-service (DDoS) attacks, according to exclusive data provided by cyber security research firm Team Cymru (pronounced kum-ree).

In DDoS assaults, cyber gangsters demand tens of thousands of dollars in protection money from businesses. If the businesses refuse to pay, the criminals order hundreds or thousands of compromised computers that they control to flood the Web sites with meaningless traffic, crippling the businesses and preventing legitimate visitors from transacting with the sites.

This video animation, provided by Team Cymru, depicts the targets of DDoS attacks between Jan. 1 and Mar. 1, 2009.