Sony has dropped details of a possible security breach in the PC PlayStation Store, whereby a "small percentage" of PSN user accounts could have been compromised. A consumer alert on PlayStation.com assures account owners their credit card numbers are likely safe, but their passwords might be changed. In addition, unauthorized access may permit an intruder to use the PS Store 'Wallet' and view any stored personal information.
While Sony claims that "system security is restored" and all potential victims are being directly contacted, the alert does "strongly suggest" that you sign into the PSN service and verify that you still have access to your account ... You still do, don't you? Muwhahaha!