Ubuntu Forums account information breached
The Ubuntu Forums site is currently displaying a "down for maintenance" message that describes a security breach of the accounts database, which revealed all usernames, passwords, and email addresses to the attacker(s). Ubuntu One, Launchpad, and other Canonical web sites are not affected by the breach. "The passwords are not stored in plain text. However, if you were using the same password as your Ubuntu Forums one on another service (such as email), you are strongly encouraged to change the password on the other service ASAP."