GOP — which stands for Guardians of Peace — did not specifically identify the movie. Authorities have been investigating whether the hacker attack is in some way be connected to "The Interview," the movie that has generated condemnation from the government of North Korea.

The message from GOP said that they "have given our clear demand to the management team of Sony, however they have refused."

"You, SONY, & FBI, cannot find us."

The note also included a link connected to the names of Amy Pascal and Stephen Mosko.