The attack on Sony may have received the most publicity but the attacks on financial houses were bigger and other attacks actually resulted in physical damage. Cyberwar is not something in a novel, is not something that just happens between nations, and isn’t restricted to rearranging information. Things like pipelines have gone boom. All it takes is a keyboard and the right approach. War has never been more asymmetric.
“Digital Weapons Causing Physical Damage” – Computer World
Pretending Not To Panic 