Subscribers to the Sony Playstation online service should have already received a notice warning that the April 17-19 intrusion by a hacker appears to have led to the loss of personal account information.
The message from Sony read:
For your security, we encourage you to be especially aware of email, telephone, and postal mail scams that ask for personal or sensitive information. Sony will not contact you in any way, including by email, asking for your credit card number, social security number or other personally identifiable information. If you are asked for this information, you can be confident Sony is not the entity asking. When the PlayStation Network and Qriocity services are fully restored, we strongly recommend that you log on and change your password. Additionally, if you use your PlayStation Network or Qriocity user name or password for other unrelated services or accounts, we strongly recommend that you change them, as well.
Please pay attention to your credit card statements over the next several months. Any suspicious bills should be reported promptly to your bank.