stole 77 million playstation accounts, knocking out the network for almost a month. >> people thought about so-called cyberterrorism, they thought hacking. >> reporter: asia strategist keith henry says sony was taken by surprise last a month. cybercriminals took control of sony pictures' computer system, and they did something unprecedented, stealing massive amounts of data, and using it to devastate the company. >> it can inflict damage, immense amount of damage to corporate america. >> reporter: sony appears to be trying to avoid further provoking north korea, the prime hacking suspect, telling cnn simply the investigation is ongoing. the japanese government is also distancing itself, telling cnn it's a united states issue. >> one of the reasons why no one is willing to make a statement, because they don't know what to say. >> reporter: henry says the world is coming to terms with the new reality of cyberterrorism. >> how are we going to deal with it? we don't know yet. >> reporter: for now, at tech labs like this, a new sense of