UPDATE: Sony have now stated that outdated credit cards from non-US customers may be at risk

Sony have issued an official statement refuting the claim that users details have been offered for sale online following their recent security woes.

Patrick Seybold, Communications Director for Sony, blogs:

"One report indicated that a group tried to sell millions of credit card numbers back to Sony. To my knowledge there is no truth to this report of a list, or that Sony was offered an opportunity to purchase the list."

Seybold goes on to address the issue of storing non-encrypted data:

"One other point to clarify is from this weekend’s press conference. While the passwords that were stored were not “encrypted,” they were transformed using a cryptographic hash function. There is a difference between these two types of security measures which is why we said the passwords had not been encrypted. But I want to be very clear that the passwords were not stored in our database in cleartext form.

"For a description of the difference between encryption and hashing, follow this link."

As for the actual restoration of services, there's still no estimated date:

"Our objective is to increase security so our customers can safely and confidently play games and use our network and media services. We will continue to provide updates as we have them."