BioWare made the announcement recently and sent emails out to accounts that may have been compromised, but as a precaution they recommend all users to change their passwords anyway. Usernames, passwords, email addresses and birth dates were jeopardized, fortunately there was no credit card data to be taken. Here’s the full statement from BioWare:
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.
There isn’t any information on who was behind the intrusion, or why the hacker(s) did it, but you can be sure it won’t be the last of such attacks. Any bets on which companies will get hit next?