` ` Unequivocally , they are not responsible , '' a cybersecurity expert says about North Korea . Data in the PlayStation console may have originated in North Korea but disappeared a long time ago . Hackers have often taken aim at Sony . In 2012 , hackers stole the data of an estimated 77 million people .
`` Unequivocally , they are not responsible , '' a cybersecurity expert says about North Korea . Malware in the Sony hack may have originated in North Korea but leaked a long time ago . Hackers have often taken shots at Sony . In 2011 , hackers stole the data of an estimated 77 million people .