Making a corporate fool of Sony isn't enough for the mysterious hackers calling themselves "The Guardians of Peace"—they're now emailing threats directly to the company's shaken staffers, the Hollywood Reporter says.

The following message was sent directly to Sony Pictures employees:

I am the head of GOP who made you worry.

Removing Sony Pictures on earth is a very tiny work for our group which is a worldwide organization. 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. This situation is only due to Sony Pictures. Sony Pictures is responsible for whatever the result is. Sony Pictues clings to what is good to nobody from the beginning. It's silly to expect in Sony Pictures to take off us. Sony Pictures makes only useless efforts. One beside you can be our member.

Many things beyond imagination will happen at many places of the world. Our agents find themselves act in necessary places. 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.

Nobody can prevent us, but the only way is to follow our demand. If you want to prevent us, make your company behave wisely.

Unless it's deliberately phrased in broken English, this will lend a little more credence to the "North Korean revenge" theory.