Blizzard, the company behind the popular online role-playing game World of Warcraft, has announced that it is producing a hardware token device to help protect its gamers against cybercriminals. Blizzard is fighting back against hackers who have feasted upon game players on poorly protected PCs in the past by introducing a small hardware device that produces a one-time six-digit number that can be entered at login alongside the users regular username and password. Even if keyboard logging spyware has infected the PC and can grab the password it wont find the random number very useful as it expires within a couple of minutes.”]
Source: https://grahamcluley.com/world-of-warcraft-strikes-back/