(By Yuriko Nakao/Reuters)

The company said that all personal data was protected and credit card data was encrypted. Sony is also working on a software update that will require all users to reset their passwords once the network is restored.

Sony has said repeatedly that it has no proof that credit card data was actually stolen, though it is advising users to be on the lookout for mysterious charges just in case.

However, Ars Technica has reported that several of its readers have reported fraudulent credit card charges that coincide with the data breach. There’s no clear evidence that the fraud is linked to Sony’s breach, but at least one Ars reader said that the card that had the false charges was used for few things apart from purchases on the PSN.

Sony did not immediately respond to a request for comment on the Ars Technica report.

The company is facing more official inquiries as well, as lawmakers and regulatory agencies around the world ask for more information about the breach.

Bloomberg reported that, in addition to inquiries from Connecticut, the U.K. and Ireland, an Alabama man has sued Sony. Kristopher Johns is seeking reimbursement for any losses related to his credit card data being stolen and refunds for defective services.

Have you been affected by the PSN hack? Have you had any fraudulent charges on your card since the breach?

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Sony sued over PlayStation security breach and data theft

Sony got hacked; what should I do?

PlayStation Network still down after ‘external intrusion’