If you wish to transfer a domain name from one domain name registrar to another, you will have to go through a couple of security procedures. One of them is getting a unique EPP authorization code from the current domain name registrar – provided that you are the domain registrant, since the code is sent to the owner's mailbox and no one else can get it. You will need to provide this code to the new domain name registrar, otherwise they won’t be able to begin the transfer process. The EPP authorization codes are case-sensitive and may contain digits or special characters such as commas or dots, which can be easily misentered, so make sure you copy and paste the correct code. As an extra security measure, the transfer code for a domain name may be changed regularly. Certain registrar companies call this code a domain secret, a domain password or an Auth key as well.