Russian gov't doesn't need to be identifiably involved
If putin says "Who will rid me of this meddlesome priest." there are plenty who will do exactly that to curry favour, but unlike the knights who bumped off Thomas Becket they will indeed be rewarded. Just look at the activities of the Nashi youth movement, the role of the Oligarchs and the Litvinenko affair, state involvement is deniable but it just happens that by pure coincidence the outcome is not at all unwelcome to the state.
Any business in Russia needs to pay what most of us would consider to be mafia style protection money. The same organisations are involved with a wide range of internet activities most right-thinking people would consider illegal. Those guys are interested in keeping the state from clamping down on them. By making cyber attacks the state can totally deny any involvement with - but neverthless put the frightners on any other former soviet territories who may be getting too friendly to the EC/NATO and not showing due deference to Moscow they are doing Putins dirty work completely unbidden.
The Russians joke that the law is like a rope barring your path. Some (in the analogy, the underclasses) duck under the rope and some (the powerful and wealthy) just step over it, only the law abiding fools regard it as a barrier.


