North Korea is the prime suspect in a recent cyber attack on Sony Pictures, the studio behind a Hollywood comedy about the attempted assassination of North Korean leader Kim Jong-un.
Bloomberg on Tuesday reported Korean language code was found in the malware that was used to cripple Sony's computer systems.
"Other aspects of the breach bear important similarities to attacks that wiped out the computers of South Korean banks and broadcasters in March 2013," Bloomberg added quoting sources in the investigation.
"The malware, designed by unknown operators, has the ability to overwrite data files, including what's called the master boot record, making computers unusable," Bloomberg quoted the FBI as saying in a flash alert to U.S. companies.
The hackers leaked the seven-figure pay top Sony executives take home as well as the company's latest blockbusters including "Fury" and "Annie" onto the Internet.
They used computers in Thailand, Italy, and Poland that have nothing to do with Sony by infecting them with a virus, the FBI speculated.
