UPDATE: According to Der Spiegel Adobe is investigating the issue since August when a well organised, strategic attack was started against the company’s network. Source code of Adobe products was also stolen. Adobe’s security says they assume that just encrypted credit card data has been stolen, and that they are working to identify all hacked accounts.
For German readers: check Heise.de
This just broke the news in Europe. It appears that hackers broke into Adobe servers and compromised 3,000,000 accounts (source: focus-numerique). Credit card information could have been stolen though Adobe says there is no evidence so far. Adobe states (scroll down for other languages):
Subject: Important Customer Security Alert.
We recently discovered that attackers illegally entered our network. The attackers may have obtained access to your Adobe ID and encrypted password. We currently have no indication that there has been unauthorized activity on your account. If you have placed an order with us, information such as your name, encrypted payment card number, and card expiration date also may have been accessed. We do not believe any decrypted card numbers were removed from our systems.
To prevent unauthorized access to your account, we have reset your password. Please visit www.adobe.com/go/passwordreset to create a new password. We recommend that you also change your password on any website where you use the same user ID or password. As always, please be cautious when responding to any email seeking your personal information.
We also recommend that you monitor your account for incidents of fraud and identity theft, including regularly reviewing your account statements and monitoring credit reports. If you discover any suspicious or unusual activity on your account or suspect identity theft or fraud, you should report it immediately to your bank. You will be receiving a letter from us shortly that provides more information on this matter.
We deeply regret any inconvenience this may cause you. We value the trust of our customers and we will work aggressively to prevent these types of events from occurring in the future. If you have questions, you can learn more by visiting our Customer Alert page, which you will find here.
If you are in Adobe’s Creative Cloud I suggest you check your account and change your password as soon as possible.