The login information is to be used every time you try to access your personal account; therefore, the information is to be secured in order to avoid possible thefts of identity. You also have to be perfectly aware that the Blizzard is the only one that has full rights when it comes to the permanent use of the wow accounts; only its licensees are to be considered when you decide to buy wow accounts in order to create the necessary wow characters that are likely to play in this virtual world.