Mozilla Developer Site Leaks 76,000 User Email Addresses

Some 76,000 members of the Mozilla Developers Network (MDN) had their credentials “accidentally disclosed” after a site database error, Mozilla announced on its blog.

For about a month, thousands of email addresses, along with 4,000 passwords, were leaked during a failed data sanitization process of the MDN server.

“As soon as we learned of it, the database dump file was removed from the server immediately, and the process that generates the dump was disabled to prevent further disclosure,” said Stormy Peters, Director of Developer Relations.

The passwords were “salted” – a type of password hashing algorithm that makes passwords difficult to decrypt and “they by themselves cannot be used to authenticate with the MDN website today,” the company added.

Mozilla informed affected users and recommended they change passwords, especially if they were used on other sites as well.

Mozilla Developer Network (MDN), formerly Mozilla Developer Center, is an open web platform for developers interested in web technologies and standards.