Sony Pictures acknowledged Friday evening that rogue group LulzSec has breached the companies websites, but it did not reveal the extent of the damage from the hacking.
On Thursday, LulzSec released a taunting statement saying that it had obtained the personal information of some 1 million SonyPictures.com customers.
Though LulzSec said it took passwords, email addresses, and dates of birth from the sites' users, it claims its primary goal is to expose Sony's puny defenses against cyber attack.
Sony said it has confirmed that its security had been compromised and is taking steps to rectify the problem, including contacting the U.S. Federal Bureau of Investigation.
"The cybercrime wave that has affected Sony companies and a number of government agencies, businesses and individuals in recent months has hit Sony Pictures as well," Sony Pictures Chairman Michael Lynton and Co-Chairman Amy Pascal said in a joint statement.
The company said it is conducting a forensic analysis of the attack.
No company has been as hard hit by the cybercrime wave Pascal and Lynton described as Sony. In April, the company revealed that a security breach on its PlayStation network had compromised the security of more than 100 million users. The company also recently was forced to grapple with attacks to its music sites in Japan and Germany.
It was LulzSec who claimed responsibility for the hacks to Sony's BMG website in Japan.