In a forumby BioWare Edmonton GM Aaryn Flynn:
"Yesterday (June 14), we learned that a hacker gained unauthorised access to the decade-old BioWare community server system associated with the Neverwinter Nights forums. We immediately took appropriate steps to protect our consumers' data and launched an ongoing evaluation of the seriousness of the breach.
"We have determined that no credit card data was compromised, nor did we ever have or store sensitive data like social security numbers. However hackers may have obtained information such as user account names and passwords, email addresses, and birth dates of approximately 18,000 accounts - a very small percentage of total users.
"We have emailed those whose accounts may have been compromised and either disabled their accounts or reset their EA Account passwords. If you did not receive an email from us, or if your password still works for your EA account, your username and password were not compromised. Nevertheless, changing your password regularly is always helpful to protect your account."
However, if your Bioware account was linked to an Electronic Arts account, there may be problems especially if your EA account has stored mailing and billing address, language, game entitlements and games played.