The code isn't meant to replace the player's Rohan Gold existing login and password, but add extra security in case players feel they need to take this precaution. If the code is ever lost, Blizzard's account services team can help retrieve it by verifying some secure information. Blizzard co-founder and CEO Mike Morhaime explain, it's important to us that gold offers a safe and enjoyable game environment. One aspect of that is helping players avoid account compromise, so we're pleased to make this additional layer of security available to them.