WASHINGTON (12/4/14)--After Sony Pictures Entertainment suffered a massive cyberattack that crippled its corporate email and computer systems last week, the FBI issued a warning to U.S. businesses to be on the lookout for the destructive malware.
The FBI warned that the malware overrides all the data on computer hard drives and prevents them from booting up. The agency also said that the Sony incident is part of a major cyberattack--the first against a company on U.S. soil, according to an exclusive report from Reuters (Dec. 2).
"The overwriting of the data files will make it extremely difficult and costly, if not impossible, to recover the data using standard forensic methods," the report said.
In a five-page confidential "flash" warning sent to businesses late Monday, the FBI provided technical details about the malware and advice on how to respond.
In addition to destroying data on Sony's system, the hackers stole the personal information of thousands of the entertainment company's employees. Employees were warned not to connect to the company's corporate network or check email, and that they should power down their computers and disable Wi-Fi on all mobile devices (KrebsOnSecurity.com Dec. 2).