Employees at Sony and their families where threatened via email on Friday by a group claiming responsibility for the massive hack that exposed payroll information and other sensitive data, USA Today reported.
"Many things beyond imagination will happen at many places of the world. Our agents find themselves act in necessary places," the email read. "Please sign your name to object the false of the company at the email address below if you don't want to suffer damage. If you don't, not only you but your family will be in danger."
The email, which was initially published by Variety, was reportedly sent by the head of the group calling itself the "Guardians of Peace" (GOP).
The company received the threat despite reportedly changing its email servers, replacing office computers, and telling employees to change their personal passwords.
"We understand that some of our employees have received an email claiming to be from GOP," a spokesperson told Mashable. "We are aware of the situation and are working with law enforcement."
The threat comes less than two weeks after the company was rocked after being hacked with a data-wiping virus that targeted computers using Microsoft Windows.
Reuters reported that personal data, including Social Security numbers and savings account information for more than more than 6,800 individuals was exposed.
"Removing Sony Pictures on earth is a very tiny work for our group which is a worldwide organization," the message from the "Guardians" stated on Friday. "And what we have done so far is only a small part of our further plan. It's your false if you if you think this crisis will be over after some time. All hope will leave you and Sony Pictures will collapse."
Officials from North Korea rejecting an allegation on Thursday that it was involved in the cyberattack as retaliation against Sony for releasing the upcoming comedy The Interview, in which Seth Rogen and James Franco play characters trying to assassinate the country's leader, Kim Jong-un.
"Linking the DPRK [Democratic People's Republic of Korea] to the Sony hacking is another fabrication targeting the country," one diplomatic official said. "My country publicly declared that it would follow international norms banning hacking and piracy."