On July 10 a security breach was found at SpreadFireFox.com where an attacker could have stolen user data, such as addresses, email accounts, username and passwords. The attacker uses a vulnerability in Drupal, the software used by the website.
It was a relief when it was found that the Mozilla Foundations main systems weren't compromised,only SpreadFireFox.Com.
Emails have been sent out to all account holders indicating what happened and steps they should take to change their information.
Although no evidence has been found, the Mozilla Foundation encourages everyone who uses the website http://www.spreadfirefox.com to log-in and change your passwords just for security sake.