Following a widespread hack that shut down Sony Pictures' computer system last week, pirated copies of several movies have surfaced online. While it is unclear if the two incidents are related, Re/code reported Friday that Sony is investigating a possible link to hackers working for North Korea in response to the studio's upcoming comedy, "The Interview." The movie follows a CIA plot to assassinate North Korean leader Kim Jong-un, starring Seth Rogen and James Franco. Employees have been forced to use pen and paper in order to stay offline while authorities investigate. Sony has declined to comment on any progress.