Sony Pictures Entertainment says approximately 37,500 users had personally identifiable information stolen in an attack last week on its website.

The Culver City, California-based company says it notified users of the breach Wednesday and warned them to change passwords.

Parent company Sony Corp. has been hammered by personal data loss problems, including separate hacks that compromised the personal information of more than 100 million users earlier this year.

It has also suffered additional breaches since the attack on Sony Pictures' website, including a hack that claimed 120 usernames and passwords from Sony Europe.

Hackers Lulz Security had boasted of accessing more than 1 million accounts, but said they could only steal a fraction of the names due to resource issues.