The hacker group calling themselves 'Lulz Security' claimed fresh attack on Sony and published online the names, birth dates, addresses, emails, phone numbers and passwords of people who had entered contests promoted by Sony.
"We recently broke into SonyPictures.com and compromised over 1,000,000 users' personal information, including passwords, email addresses, home addresses, dates of birth, and all Sony opt-in data associated with their accounts," Lulz Security said.
Lulz Security posted a post on pastebin.com explaining the action, saying: "Greetings folks. We're LulzSec, and welcome to Sownage. Enclosed you will find various collections of data stolen from internal Sony networks and websites, all of which we accessed easily and without the need for outside support or money."
"Among other things, we also compromised all admin details of Sony Pictures (including passwords) along with 75,000 "music codes" and 3.5 million "music coupons"."
Sony, who recently announced the restoration of PlayStation Network and Qriocity, said that it was investigating the fresh hacking attempt.
"We are looking into these claims," Sony Pictures Entertainment executive vice president Jim Kennedy said in a statement.
The fresh hacking came just few weeks after hackers intruded to Sony's PlayStation, Qriocity and Sony Online Entertainment networks, forcing Sony to pull these services offline. It is believed that these attacks have compromised personal details including credit card numbers and passwords of more than a million Sony users.