The FBI has launched an investigation on the attack hackers that hit Sony Pictures?

Sony Pictures begins to fight back after the hacker attack which forced the company to shut down the computer and the mail system, assuming the Madiant ...

The unit of forensic Madiant by FireEye Inc. was assumed by Sony Pictures to restore the computer system of the company after the cyber attack perpetrated by the group Guardians of Peace, which has paralyzed the entire computer network a week ago. They revealed three people aware of the facts to Reuters.

The Madiant is a company that helps victims of violations Computing helps customers identify the extent of the attack, clean up the network and restore systems. Behind have the management of some of the greatest violations discovered till today, including the attack on the Target Corp in which the data had been stolen 40 million credit cards.

A source of Variety reports that you are beginning to see the first progress. Some critical business systems are back in operation and it is hoped that by now the engineers are able to put online the e-mail system, which had been turned off along with other systems after the attack that struck the company on 24 November. Sending e-mail to the company had proved impossible in recent days, with the mail that came back accompanied by a message that was required to call phone employees because the system was 'experiencing a break'. A situation, which has forced the executive of the study to use their personal email to release the data collections obtained this weekend

Meanwhile it seems that the FBI has launched investigations even if the official bodies have refused to confirm or deny the participation of the agency in the investigation. Among the possible culprits, in addition to the aforementioned North Koreans, there are rumors of the involvement of Chinese hackers, reports THR. In May, the Justice Department had accused several individuals from the People's Liberation Army of China, of stealing trade secrets of some American companies while this October, Chinese hackers were blamed for entering the storage service of dell'iCloud Apple, China, to try to steal user credentials.

Others have suggested that those responsible could be former or current employees of Sony. In an email sent to the website The Verge through the user 'lena' hackers say they want equality by society. There is, however, to take into account that the electronic letter was sent through an open account which does not require the use of a password, and therefore can be used by anyone.

When hackers obtained access to multiple accounts on Twitter Sony, have posted a picture with the heads of the two presidents of the study's CEO Michael Lynton and co-chairman Amy Pascal.

I do not know at this point what is the goal of the group and if I could expect another attack or another data leakage in the next days.