Sony chief Michael Lynton also issued an internal memo to employees thanking them for their resilience. Lynton: “This was an unparalleled and well planned crime, carried out by an organized group” Sony: “We are aggressively responding to this incident and we will continue to coordinate closely with your staff as new facts emerge from our investigation” The FBI issued a flash alert to warn other organizations of this critical threat to other organizations. The FBI said the malware was undetectable by industry standard antivirus software and was damaging and unique.”]
Source: https://deadline.com/2014/12/sony-hacking-scandal-issues-note-to-employees-1201312791/