(Bloomberg) — Sony Pictures Entertainment security advisers believe the cyberattack on the company's computer systems was the work of an organized group, Chief Executive Officer Michael Lynton said in an e-mail to his staff.
Lynton said the investigation into the attack, which has paralyzed the company's computers for almost two weeks, is continuing. Responding to staff concerns about security, he passed on a message he received from Kevin Mandia, chief operating officer of FireEye Inc., the cybersecurity firm assisting Culver City, California-based Sony Pictures in its investigation.
Mandia described the attack on Sony Corp.'s film and television studio as unprecedented and said the malware used was undetectable by industry-standard antivirus software.
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