If you decide to transfer a domain from one company to another, you will have to pass through a few safety procedures. One of them is getting a unique EPP authentication code from the current registrar company – provided that you are the registrant, since the code is emailed to the owner's email account and nobody else can see it. You have to give this code to the new registrar, otherwise they will not be able to begin the domain name transfer process. The EPP authentication codes are case-sensitive and may contain numbers or special symbols such as commas or dots, which can be easily misentered, so make sure you copy/paste the correct code. As an additional security measure, the transfer authorization code for a domain name may be reset regularly. Some companies call this code a domain password, a domain secret or an Auth key as well.