Sony has sent out a warning to its PlayStation Network users that their personal information, including credit card details, could have been stolen.

The multinational corporation has said that the data might have fallen into the hands of an “unauthorised person” following an attack of its online service.

Online access to the network has been suspended for a week, but Sony has only now released details of what happened.

Meanwhile, users are being warned to avoid attempted telephone and email scams.

The company’s head of communications for Europe, Nick Caplin posted the following on the official PlayStation blog: “We have discovered that between April 17 and April 19, 2011, certain PlayStation Network and Qriocity service user account information was compromised in connection with an illegal and unauthorized intrusion into our network.”

The blog goes on to list the personal information that Sony believe may have been taken:

Name
Address (city, state/province, zip or postal code)
Country
E-mail address
Date of birth
PlayStation Network/Qriocity passwords and login
Handle/PSN online ID

The Sony PlayStation Network continues to remain unavailable to users. The company has not stated when service is likely to be restored.