Sony Pictures Entertainment has hired FireEye Inc’s Mandiant forensics unit to clean up a massive cyber attack that knocked out the studio’s computer network nearly a week ago, three people with knowledge of the matter said on Sunday.
Sony Hires Mandiant After Cyber Attack, FBI Starts Probe
Mandiant is an incident response firm that helps victims of breaches identify the extent of attacks, clean up networks and restore systems.
The U.S. Federal Bureau of Investigation is also investigating the incident, said one of the people, who were not authorized to publicly discuss efforts to deal with the attack.
The computer systems at the Sony Corp unit went down last Monday after displaying a red skull and the phrase “Hacked By #GOP,” which reportedly stands for Guardians of Peace, the Los Angeles Times reported.
Technicians are making headway in repairing damage caused by the attack and expect to have the email systems back online Monday, said the source who commented on the FBI investigation.
Sony executives have declined to comment on the scope of the attack, though emails have been bouncing back with messages asking senders to call employees because the system was “experiencing a disruption.”
Representatives with FireEye and the FBI declined comment.
Mandiant is an incident response firm that helps victims of breaches identify the extent of attacks, clean up networks and restore systems. The firm has handled some of the largest breaches uncovered to date, including the 2013 holiday attack on Target Corp.
Technology news website Re/code reported on Friday that Sony was investigating to determine whether hackers working on behalf of North Korea have launched the attack in retribution for the studio’s backing of the film “The Interview,” which is to be released on Dec. 25 in the United States and Canada.
The movie is a comedy about a CIA attempt to assassinate North Korean leader Kim Jong-Un. The Pyongyang government denounced the film as “undisguised sponsoring of terrorism, as well as an act of war” in a letter to U.N. Secretary-General Ban Ki-moon.
(Reporting by Jim Finkle and Ron Grover; Editing by Eric Walsh, Bernard Orr)
This article originally appeared on Recode.net.
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