Sony Corp. started investigating a hacker group's claim that it stole personal information from 1 million accounts at the Sony Pictures website.
A group calling itself LulzSec posted statements online saying it broke into SonyPictures.com and downloaded unencrypted personal information, including passwords, email addresses and dates of birth from 1 million user accounts.
"We are looking into these claims," Jim Kennedy, a spokesman for Sony Pictures Entertainment, said Thursday in an emailed statement.