Dear addons.mozilla.org user,
The purpose of this email is to notify you about a possible disclosure of your information which occurred on December 17th. On this date, we were informed by a 3rd party who discovered a file with individual user records on a public portion of one of our servers. We immediately took the file off the server and investigated all downloads. We have identified all the downloads and with the exception of the 3rd party, who reported this issue, the file has been download by only Mozilla staff. This file was placed on this server by mistake and was a partial representation of the users database from addons.mozilla.org. The file included email addresses, first and last names, and an md5 hash representation of your password. The reason we are disclosing this event is because we have removed your existing password from the addons site and are asking you to reset it by going back to the addons site and clicking forgot password. We are also asking you to change your password on other sites in which you use the same password. Since we have effectively erased your password, you don't need to do anything if you do not want to use your account. It is disabled until you perform the password recovery.
We have identified the process which allowed this file to be posted publicly and have taken steps to prevent this in the future. We are also evaluating other processes to ensure your information is safe and secure.
Should you have any questions, please feel free to contact the infrastructure security team directly at email@example.com. If you are having issues resetting your account, please contact firstname.lastname@example.org. We apologize for any inconvenience this has caused.
Director of Infrastructure Security
The database included 44,000 inactive accounts using older, md5-based password hashes. We erased all the md5-passwords, rendering the accounts disabled. All current addons.mozilla.org accounts use a more secure SHA-512 password hash with per-user salts. SHA-512 and per user salts has been the standard storage method of password hashes for all active users since April 9th, 2009.
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quote: We have identified all the downloads and with the exception of the 3rd party, who reported this issue, the file has been download by only Mozilla staff.