Sony's PlayStation Network has been down since 20th April, and for the past few days, its fate has been unknown to many. As of now, Sony has made a statement, admitting that the network has been compromised. More importantly, personal data that was provided by users through the network has been obtained by an unauthorized person. In other words, your account has also been compromised.
Ars Technica - Sony has announced the bad news: hackers have your personal data, and they may have your credit card information as well. Now it's time for the questions, such as how much this breach and the bad PR attached to it will hurt Sony, and how long the company knew the data was in the hands of the hackers before sharing that information with customers. While it doesn't look like Sony will be liable in any legal sense for holding back information, this black eye won't soon go away.
In Sony's words, they've stated that "out of an abundance of caution we are advising you that your credit card number (excluding security code) and expiration date may have been obtained." which doesn't sound too assuring. Users will have to cross their fingers, and hope the attack on the PlayStation Network will be resolved soon.