For anyone that hasn't seen the news yet (and has a Sony Playstation Network account)... Sony had a major security breach 6-9 days ago, wherein the account information for 77 million accounts was stolen. They're classifying this as potentially the biggest data theft ever, because of the amount of pieces of personal info stolen per account (not just the amount of accounts).
Please see here for Sony's FAQ on their network security breach of April 17-19th:
http://us.playstation.com/support/answer/index.htm?a_id=2356The Sony Playstation Network is still down so you cannot go in and change your password, or other information until it comes back up... but it's highly recommended that you change your passwords on any other sites that you are using the same password as you had on your Playstation. Also, look at potentially what you need to do to protect your credit, as the credit card information was potentially (they don't know yet or aren't telling us) stolen too. So, check with your credit card holder/bank and possibly the credit bureaus. This looks like it affects accounts worldwide.