Sony Pictures issued a warning Sunday to news organizations against use of information leaked after a massive security breach at the studio.
In a sternly worded letter first reported by The New York Times, Sony Pictures attorney David Boies referred to the leaked Sony documents as "stolen information" and demands that those that may have already been downloaded not be reviewed and destroyed.
The FBI declined to name the source of the Sony Pictures hack during a U.S. Senate hearing on Wednesday.
"I won't touch on the attribution piece because we're still working very hard on that," said Joseph Demarest, assistant director of the FBI's cyber division. Demarest's comment was in reply to questions from Sen. Charles Schumer (D-NY) during a hearing of the Senate Banking Committee.
Security firm Kaspersky Labs reports that a new sample of the Destover malware—the malware family used in the recent attack on the networks of Sony Pictures—has been found bearing a valid digital signature that could help it sneak past security screening on some Windows systems. And that digital signature is courtesy of a certificate stolen from Sony Pictures.
Sony Pictures is in full-blown damage-control mode and has called an all-hands meeting following another huge leak of sensitive, confidential info. The new trove of data released by the so-called GOP (Guardians of Peace) includes more private employee info, actor phone numbers and traveling aliases, legal claims against Sony Pictures, film budgets, scripts and more. As pointed out by the WSJ, it also includes private info of some 40,000 Sony Pictures ex-employees like home addresses, previous salaries and social security numbers.
The group claiming responsibility for the Sony Pictures hack has denied it threatened Sony employees and demanded the studio halt the release of a movie that makes light of an assassination attempt on the leader of North Korea.
The message was posted on the Github website and claims to be from the the Guardians of Peace, a previously unknown hacker group that claimed responsibility for the attacked on Sony Pictures more than two weeks ago