Sony has disclosed that there is a “possibility of unauthorized access to personal information on the PlayStation Store through PC’s, a content download service of the PlayStation Network.”

In a post on SCEA’s PlayStation blog and on Sony of UK’s official website, Sony has confirmed that “although unlikely, it is possible that the passwords of a small percentage of PlayStation Network users may have been changed through unauthorized access, making it possible to view users’ personal information and/or use the Wallet for the PlayStation Store.”

Sony does, however, assure users that “PlayStation Network accounts do not display entire credit card numbers, so any unauthorized access to your PlayStation Network account is very unlikely to compromise your credit card number.”

Sony has taken “immediate measures” to sort the problem out and to restore security to the system. Sony will get in touch with customers who may have been affected but they are advising PlayStation Network users to sign in to the service – it seems that your account is safe if you can sign in with your pre-set password.