During July 2013, hackers gained access to the Linux Ubuntu Forums impacting over 19,000 active users.
QUOTE: The official forums for the Linux Ubuntu OS have been offline following a security breach this weekend. An intruder reportedly gained access to 1.8 million user names and passwords as part of the attack. If you’re among those affected, now would be a good time to get a password manager. The attack was first reported on July 20, and the forum has since been replaced by a simple splash page. “Unfortunately the attackers have gotten every user’s local username, password, and email address from the Ubuntu Forums database,” reads the Ubuntu website. “The passwords are not stored in plain text, they are stored as salted hashes.” Even so, the site advises that users who recycled their login information should change the passwords on all affected sites. The UK Register reports that, prior to being taken offline, the Ubuntu forum had over 1.8 million registered users, 19,493 of whom are active on the site. The site, which is still offline as of writing, is apparently a major hub for the Ubuntu user and development community. Canonical, the company which manages Ubuntu releases, advises visitors to go elsewhere for the time being.