In December 2012, the multiplayer online battle arena game known as Heroes of Newerth was hacked and over 8 million accounts extracted from the system. The compromised data included usernames, email addresses and passwords.
Accounts breached: 8089103
Breached on: December 17, 2012
Exposed data: Email addresses, Passwords, and Usernames
Domain: heroesofnewerth.com
Added on: January 24, 2016