Sony PlayStation Network users are reporting fraud on their credit cards -- everything from a flight booked in Germany to purchases in Japanese grocery stores.

On Thursday, a security firm reported hackers are offering for sale what they claim are stolen PSN credit card details, despite the fact Sony is adamant that the data was encrypted and is therefore unusable. Sony also said there's "no evidence that credit card data was taken."

Meanwhile, Congress has gotten involved, with the House Committee on Energy and Commerce sending a list of questions to Sony chairman Kazuo Hirai (PDF link to the letter), and demanding answers by May 6. Additionally, the NextGov website claims the Homeland Security Department is helping Sony with its investigation.

More: http://www.pcworld.com/article/226775/