A hacker group has claimed it has attacked the Sony network and stolen more than one million passwords, email addresses and other information.
Lulz Security said it broke into servers which run SonyPictures.com.
Sony said it was aware of Lulz Security's statement and was investigating, the Associated Press reported.
In April, hackers broke into Sony's PlayStation Network and stole data from more than 77 million accounts.
That attack was considered the biggest in internet history and led to Sony shutting down the PlayStation Network and other services for almost a month.
In a statement on Thursday, Lulz Security said it had hacked into a database that included unencrypted passwords as well as names, addresses and dates of birth of Sony customers.
"From a single injection, we accessed EVERYTHING," it said. "Why do you put such faith in a company that allows itself to become open to these simple attacks?"
The group also recently claimed responsibility for hacking the website of the PBS network and posting a fake story in protest of a new programme on WikiLeaks.
This isn't really Sony's fault to be honest. I'm sure their security isn't as good as it should have been, but they are sort of being unfairly targeted and embarrassed at this point. I can assure you Microsoft and Nintendo are perfectly capable of being embarrassed in the same way, and this particular group of hackers has some type of motive or reason for why they are repeatedly targeting Sony. This is going to end up costing tens of billions of dollars and dealing a colossal blow to an already dying gaming industry.
They pay $60 for a game and they have to pay another $50 to be able to play the multiplayer part. That's ripping people off. If you pay for $60 for a game that has multiplayer, at least expect to be able to play online for free.
They pay $60 for a game and they have to pay another $50 to be able to play the multiplayer part. That's ripping people off. If you pay for $60 for a game that has multiplayer, at least expect to be able to play online for free.
You get what you pay for, and that is a superior and safe experience with Xbox LIVE.
Stay whining