Sony plans to delay its third-quarter financial results and has blamed North Korea's crippling cyber attack on Sony Pictures Entertainment's business systems. The media giant has asked Japan's Financial Services Agency to extend its deadline by a month so it can compile the period's results. Sony needs the extension so its film unit can enter two months' worth of trading data into financial systems taken offline in response to last November's breach. Sony Pictures Entertainment shut down its internal networks to contain the attack, taking essential financial and accounting applications offline. Sony on Friday said most of those applications would not be functional again until "early" February. This was "due to the amount of destruction and disruption that occurred, and the care necessary to avoid further damage by prematurely restarting functions."