i think that this is just more to add to things... the list of problems just keeps growing... now, as for your question of counterattack... first, it would be illegal, and this is a case that should be left to the professionals. and beyond that i think in this case the best offense is a good defense. attacking the south korean hackers may not be a good thing, and besides, retaliation will just cause more trouble. protecting yourself is always the best option.