Sony felt the sting of yet another data breach when hackers broke into the computer networks of Sony Pictures and exposed the personal information of more than one million customers.

Hacker group LulzSec, which claimed responsibility for the attack, said that they exploited security vulnerabilities on the Sony Pictures Web site with an easily executed SQL injection attack.

Altogether, the hackers said that they accessed personally identifying information, including passwords, e-mail addresses, home addresses, dates of birth and all Sony opt-in data associated with the accounts of more than one million users.

The LulzSec hackers also said that they compromised all admin details of Sony Pictures, as well as 75,000 "music codes" and 3.5 million music coupons, while breaking into other tables from Sony BMG in the Netherlands and Belgium.